diff --git a/backend/app/analysis/common.py b/backend/app/analysis/common.py
index 3c278c5b..b5abc89b 100644
--- a/backend/app/analysis/common.py
+++ b/backend/app/analysis/common.py
@@ -64,13 +64,18 @@ def today_param(env: Env) -> str:
 def build(env: Env, params: dict[str, Any], used: Sequence[str], *, status: str = "ok",
           reason_code: str | None = None, reason: str | None = None, table: Mapping[str, Any] | None = None,
           values: Mapping[str, Any] | None = None, verdict: Mapping[str, Any] | None = None, criterion: str,
-          phrase: str, caveats: Sequence[Mapping[str, str]] = ()) -> AnalysisResult:
-    """组装一份结论：形状严格按 contract.AnalysisResult，params 补上查过的目录事实。"""
+          phrase: str, caveats: Sequence[Mapping[str, str]] = (),
+          formats: Mapping[str, str] | None = None, named: Mapping[str, str] | None = None) -> AnalysisResult:
+    """组装一份结论：形状严格按 contract.AnalysisResult，params 补上查过的目录事实。formats 是结果表各列的换算（占比、
+    变化率的列记 pct，比率的变化记 pp），named 是具名的数的换算（value_formats）：都只留记了的，为空时整项不写。"""
     record = env.facts.record()
     out_params = {k: v for k, v in params.items() if v is not None}
     if record:
         out_params["catalog"] = record
-    return {
+    out_table = dict(table) if table is not None else None
+    if out_table is not None and (table_formats := column_formats(formats or {})):
+        out_table["formats"] = table_formats
+    out: AnalysisResult = {
         "op": env.op,
         "mode": env.mode,
         "method": METHODS[(env.op, env.mode)],
@@ -81,7 +86,7 @@ def build(env: Env, params: dict[str, Any], used: Sequence[str], *, status: str
         "status": status,  # type: ignore[typeddict-item]
         "reason_code": reason_code,
         "reason": reason,
-        "table": dict(table) if table is not None else None,  # type: ignore[typeddict-item]
+        "table": out_table,  # type: ignore[typeddict-item]
         "values": dict(values or {}),
         "verdict": dict(verdict) if verdict is not None else None,  # type: ignore[typeddict-item]
         "criterion": criterion,
@@ -89,6 +94,9 @@ def build(env: Env, params: dict[str, Any], used: Sequence[str], *, status: str
         "caveats": [dict(c) for c in caveats],  # type: ignore[misc]
         "hypothesis": env.hypothesis,
     }
+    if named_formats := value_formats(named or {}):
+        out["value_formats"] = named_formats
+    return out
 
 
 def refuse(env: Env, params: dict[str, Any], used: Sequence[str], code: str, reason: str, *,
@@ -155,9 +163,19 @@ def column_types(columns: Sequence[str], *, dims: Mapping[str, str | None] | Non
     return out
 
 
+def column_formats(formats: Mapping[str, str]) -> dict[str, str]:
+    """结果表的 formats（ResultTable.formats）：列 id → 换算。只留记了换算的列，都为空时整项不写（结论和以前一字不差）。"""
+    return {str(k): v for k, v in formats.items() if v}
+
+
+def value_formats(values: Mapping[str, Any]) -> dict[str, str]:
+    """结论的 value_formats（AnalysisResult.value_formats）：键 → 换算。只留记了换算的数，都为空时整项不写。"""
+    return {str(k): v for k, v in values.items() if v}
+
+
 def sign_word(value: Fraction | float | int) -> str | None:
     return "up" if value > 0 else "down" if value < 0 else None
 
 
-__all__ = ["DERIVED_PARAMS", "Env", "build", "closes", "column_label", "column_types", "label_for", "need", "refuse",
-           "reserved_check", "sign_word", "today_param", "written_places"]
+__all__ = ["DERIVED_PARAMS", "Env", "build", "closes", "column_formats", "column_label", "column_types", "label_for",
+           "need", "refuse", "reserved_check", "sign_word", "today_param", "value_formats", "written_places"]
diff --git a/backend/app/analysis/contract.py b/backend/app/analysis/contract.py
index d8d8c61a..8f2552ac 100644
--- a/backend/app/analysis/contract.py
+++ b/backend/app/analysis/contract.py
@@ -277,6 +277,10 @@ class ResultTable(TypedDict):
     # 列 id → 类型（写法同查询快照的 column_types；第 1 波 W1-a 加，可选）：维度列照输入快照里那一列查询时记下的类型
     # （文本型的码值 "1203" 才不会被渲染成「1,203」；输入没记类型的不写），数值列 number，说明、叫法这类文字列 text
     column_types: NotRequired[dict[str, str]]
+    # 列 id → 换算（第 2 波加，可选）：占比、变化率、权重这类以比率存的列，渲染时按它换算，换算的写法同 [[m:]] 的后缀
+    # （pct 显示成百分数、pp 显示成「+1.2 个百分点」）。引用这一列的一格、展开整表时没写换算的按它渲染，写作者自己写了换算的
+    # 照他的（引用上记下实际用的换算，导出、可验证报告照它渲染）
+    formats: NotRequired[dict[str, str]]
 
 
 class AnalysisRequest(TypedDict, total=False):
@@ -302,6 +306,9 @@ class AnalysisResult(TypedDict, total=False):
     reason: str | None
     table: ResultTable | None
     values: dict[str, Any]    # 具名标量：[[a:A3.top_share]]；数一律十进制字符串
+    # 键 → 换算（第 2 波加，可选）：占比、变化率这类以比率存的数，渲染时按它换算（写法同 ResultTable.formats）。
+    # [[a:A3.top_share]] 没写换算的按它渲染，写作者自己写了换算的照他的
+    value_formats: dict[str, str]
     verdict: Verdict | None
     criterion: str            # 判定标准，一句，照实际阈值写
     phrase: str               # 判定语（app/analysis/phrases 渲染），[[a:A3]] 渲染成它
@@ -417,6 +424,16 @@ class ScopeBlock(TypedDict, total=False):
 #: 复算核对时不比的字段：hypothesis 是 agent 写的话，不是算出来的
 NOT_RECOMPUTED = frozenset({"hypothesis"})
 
+#: 结论里记格式的两处：结果表的 formats（列 id → 换算）、values 的 value_formats（键 → 换算）。换算取值同 [[m:]] 的后缀，
+#: 另加 pp（比率的变化按百分点写：「+1.2 个百分点」）
+TABLE_FORMATS = "formats"
+VALUE_FORMATS = "value_formats"
+#: 比率的换算：pct 按百分数写（0.62 显示成 62.0%）
+CONV_PCT = "pct"
+#: 比率的变化按百分点写（0.012 显示成「+1.2 个百分点」，下降时带负号）：[[m:]] 的后缀里原本没有这一种
+CONV_POINTS = "pp"
+FORMAT_CONVS: tuple[str, ...] = (CONV_PCT, CONV_POINTS)
+
 
 def same(a: Mapping[str, Any], b: Mapping[str, Any]) -> bool:
     """两份结论（封存的、复算的）是否逐字段相同（hypothesis 除外）。"""
@@ -425,8 +442,10 @@ def same(a: Mapping[str, Any], b: Mapping[str, Any]) -> bool:
 
 
 __all__ = [
-    "ARTIFACT_KIND", "CATALOG_PREFIX", "CAVEATS", "DEFAULTS", "LABELS", "LEDGER_KIND", "MARKER_KIND", "METHODS", "MODES",
-    "MODE_LABELS", "NODE_TYPE", "NOT_RECOMPUTED", "OPS", "OP_LABELS", "RANGES", "REASONS", "SETTINGS_KEY", "TOOL_NAMES",
+    "ARTIFACT_KIND", "CATALOG_PREFIX", "CAVEATS", "CONV_PCT", "CONV_POINTS", "DEFAULTS", "FORMAT_CONVS", "LABELS",
+    "LEDGER_KIND", "MARKER_KIND", "METHODS", "MODES",
+    "MODE_LABELS", "NODE_TYPE", "NOT_RECOMPUTED", "OPS", "OP_LABELS", "RANGES", "REASONS", "SETTINGS_KEY",
+    "TABLE_FORMATS", "TOOL_NAMES", "VALUE_FORMATS",
     "VERDICTS", "AnalysisInput", "AnalysisRequest", "AnalysisResult", "CallError", "Caveat", "Context", "InputSnapshot",
     "MetricComparability", "Probe", "Prober", "ResultTable", "ScopeBlock", "ScopeItem", "Verdict", "catalog_result",
     "effective_settings", "is_result", "ledger_entry", "method_label", "same", "settings_problem",
diff --git a/backend/app/analysis/decompose.py b/backend/app/analysis/decompose.py
index 104001b6..fe9f6649 100644
--- a/backend/app/analysis/decompose.py
+++ b/backend/app/analysis/decompose.py
@@ -29,7 +29,7 @@ from app.analysis import comparable as cmp
 from app.analysis import phrases as ph
 from app.analysis.common import (Env, build, closes, column_label, column_types, label_for, need, refuse,
                                  reserved_check, sign_word, today_param)
-from app.analysis.contract import CallError
+from app.analysis.contract import CONV_PCT, CONV_POINTS, CallError
 from app.analysis.inputs import Snap, as_list, hashable, same_value
 from app.analysis.numbers import canon, to_fraction
 
@@ -227,6 +227,17 @@ def _parent(raw: Mapping[str, Any], env: Env, mode: str, dims: int) -> tuple[dic
     return {"of": name, "key": key}, dict(zip(columns, hit)), depth
 
 
+#: 结果表里以比率存的列（占比、变化率、权重、比率本身）：引用、展开时按百分数显示（ResultTable.formats 记 pct）
+_RATE_COLUMNS = ("pct", "share")
+
+
+def _rate_formats(columns: Sequence[str], rate: Sequence[str] = _RATE_COLUMNS,
+                  points: Sequence[str] = ()) -> dict[str, str]:
+    """结果表各列记的换算：rate 里的列（占比、变化率、权重、比率本身）记 pct，points 里的列（比率的变化）记 pp。"""
+    return {**{c: CONV_PCT for c in rate if c in columns},
+            **{c: CONV_POINTS for c in points if c in columns}}
+
+
 _FIXED_ADDITIVE = ("base", "target", "delta", "pct", "share", "flag")
 _FIXED_RATIO = ("n_base", "n_target", "d_base", "d_target", "w_base", "w_target", "r_base", "r_target", "mix", "rate",
                 "total", "flag")
@@ -470,7 +481,9 @@ def _additive_result(env: Env, params: dict[str, Any], used: list[str], segs: li
     skip = (("offset",) if code == "flat" else ()) + (("comparability",) if outcome is None else ())
     phrase = ph.with_caveats(main, caveats, skip=skip)
     return build(env, params, used, table=table, values=values, verdict=verdict,
-                 criterion=ph.criterion_additive(s, top_k_max=k_max, summed=summed), phrase=phrase, caveats=caveats)
+                 criterion=ph.criterion_additive(s, top_k_max=k_max, summed=summed), phrase=phrase, caveats=caveats,
+                 formats=_rate_formats(columns),
+                 named={k: CONV_PCT for k in ("pct_total", "top_share", "top_k_share")})
 
 
 # --------------------------------------------------------------------------
@@ -681,7 +694,13 @@ def _ratio_result(env: Env, params: dict[str, Any], used: list[str], segs: list[
                "direction": sign_word(delta) if code in ("mix_driven", "rate_driven", "both") else None}
     return build(env, params, used, table=table, values=values, verdict=verdict, criterion=criterion,
                  phrase=ph.with_caveats(main, caveats, skip=("comparability",) if outcome is None else ()),
-                 caveats=caveats)
+                 caveats=caveats,
+                 # 权重、各段的比率按百分数显示；结构效应、自身效应、合计影响是比率的变化，按百分点
+                 formats=_rate_formats(columns, rate=("w_base", "w_target", "r_base", "r_target"),
+                                       points=("mix", "rate", "total")),
+                 named={k: CONV_PCT for k in ("r_base_total", "r_target_total")}
+                 | {k: CONV_POINTS for k in ("delta", "mix_total", "rate_total")}
+                 | {"mix_share": CONV_PCT, "rate_share": CONV_PCT})
 
 
 # --------------------------------------------------------------------------
@@ -811,7 +830,8 @@ def factor(raw: Mapping[str, Any], env: Env) -> Any:
     verdict = {"code": code, "subjects": subjects, "direction": sign_word(delta) if code != "flat" else None}
     return build(env, params, used, table=table, values=values, verdict=verdict, criterion=criterion,
                  phrase=ph.with_caveats(main, caveats, skip=("comparability",) if outcome is None else ()),
-                 caveats=caveats)
+                 caveats=caveats, formats=_rate_formats(columns),
+                 named={k: CONV_PCT for k in ("pct_total", "top_share")})
 
 
 __all__ = ["HEADLINE_SHAPE", "PARENT_SHAPE", "SAME_QUERY", "SIMPSON_SHARE", "USED", "additive", "factor", "lmdi",
diff --git a/backend/app/analysis/differ.py b/backend/app/analysis/differ.py
index 668e31e5..1b959b3b 100644
--- a/backend/app/analysis/differ.py
+++ b/backend/app/analysis/differ.py
@@ -33,7 +33,7 @@ from typing import Any
 from app.analysis import phrases as ph
 from app.analysis import stats
 from app.analysis.common import Env, build, column_label, column_types, label_for, need, refuse, sign_word
-from app.analysis.contract import CallError
+from app.analysis.contract import CONV_PCT, CONV_POINTS, CallError
 from app.analysis.inputs import Snap, as_list, hashable, same_value
 from app.analysis.numbers import canon, to_fraction
 
@@ -389,8 +389,13 @@ def _decide(env: Env, params: dict[str, Any], used: list[str], pairs: list[Pair]
               "test": shown.test, "pairs": str(len(pairs)), "differs": str(len(hits))}
     verdict = {"code": code, "subjects": subjects, "direction": direction}
     phrase = ph.with_caveats(main, caveats, skip=("multiple_comparisons",) if len(tested) > 1 else ())
+    # 比率模式的组的比率按百分数显示，两组的差、差的区间是比率之差，按百分点（均值模式是量，照原样）
+    rate = ("a_value", "b_value") if mode == "rate" else ()
+    points = ("diff", "ci_lo", "ci_hi") if mode == "rate" else ()
     return build(env, params, used, table=table, values=values, verdict=verdict, criterion=criterion, phrase=phrase,
-                 caveats=caveats)
+                 caveats=caveats, formats={**{c: CONV_PCT for c in rate}, **{c: CONV_POINTS for c in points}},
+                 named={**{k: CONV_PCT for k in ("a", "b")}, **{k: CONV_POINTS for k in ("diff", "ci_lo", "ci_hi")}}
+                 if mode == "rate" else {})
 
 
 def _sensitivity(pairs: list[Pair], mode: str, alpha: Fraction, min_expected: Fraction,
diff --git a/backend/app/analysis/series.py b/backend/app/analysis/series.py
index c9b57687..ef536014 100644
--- a/backend/app/analysis/series.py
+++ b/backend/app/analysis/series.py
@@ -33,7 +33,7 @@ from app.analysis import phrases as ph
 from app.analysis import stats
 from app.analysis.common import (Env, build, column_label, column_types, label_for, need, refuse, reserved_check,
                                  sign_word, today_param)
-from app.analysis.contract import CallError
+from app.analysis.contract import CONV_PCT, CallError
 from app.analysis.inputs import Snap, same_value
 from app.analysis.numbers import canon, to_fraction
 
@@ -258,8 +258,13 @@ def baseline(raw: Mapping[str, Any], env: Env) -> Any:
               "z": canon(z) if z is not None else None, "rank": str(stats.rank_desc(x, hv)), "n_history": str(n),
               "hist_min": canon(min(hv)), "hist_max": canon(max(hv))}
     verdict = {"code": code, "subjects": [], "direction": sign_word(x - m)}
+    # 按变化率比时，本期的变化率、中位数、常规波动范围、历史最小最大都是变化率，按百分数显示；按值本身比时照原样
+    change = ("change",) if basis == "change" else ()
     return build(env, params, used, table=table, values=values, verdict=verdict, criterion=criterion,
-                 phrase=ph.with_caveats(main, caveats, skip=("comparability",)), caveats=caveats)
+                 phrase=ph.with_caveats(main, caveats, skip=("comparability",)), caveats=caveats,
+                 formats={c: CONV_PCT for c in change},
+                 named={k: CONV_PCT for k in ("x", "median", "band_lo", "band_hi", "hist_min", "hist_max")
+                        if basis == "change"})
 
 
 def _compare_gap(series: Series, ordinal: int, lag: int, unit: str) -> str:
@@ -360,7 +365,9 @@ def trend(raw: Mapping[str, Any], env: Env) -> Any:
     verdict = {"code": code, "subjects": [], "direction": "up" if code == "rising" else "down" if code == "falling"
                else None}
     return build(env, params, used, table=table, values=values, verdict=verdict, criterion=criterion,
-                 phrase=ph.with_caveats(main, caveats, skip=("comparability",)), caveats=caveats)
+                 phrase=ph.with_caveats(main, caveats, skip=("comparability",)), caveats=caveats,
+                 # 相对斜率是比率（每期变百分之几），按百分数显示；斜率本身、p 值、各期之比照原样
+                 named={"rel_slope": CONV_PCT})
 
 
 def _tail_gap(series: Series, ordinal: int) -> str: