百分比变化计算器(进阶) — 公式

Percentage Change vs Percentage Difference

Percentage Change

% Change = ((New - Original) / Original) × 100

Used when there is a clear "before" and "after" value.

Percentage Difference

% Difference =New - Original/ ((Old+New) / 2) × 100

Used when comparing two values without a clear reference (e.g., comparing two measurements).

计算示例

A value changed from 80 to 92.

  1. % Change = (92 - 80)/80 × 100 = 12/80 × 100 = 15%
  2. % Difference = 12/86 × 100 ≈ 13.95%
  3. Absolute change = 12
  4. Ratio = 92/80 = 1.15