Calculadora de Variação Percentual
Calcule a variação percentual entre dois valores.
Pct Change
15.00 %
Formula
Percentage Change vs Percentage Difference
Percentage Change
% Change = ((New - Original) / Used when there is a clear "before" and "after" value. % Difference =Original ) × 100 Percentage Difference
New - Original / (( Old + New
Used when comparing two values without a clear reference (e.g., comparing two measurements).
Exemplo Resolvido
A value changed from 80 to 92.
- 01% Change = (92 - 80)/80 × 100 = 12/80 × 100 = 15%
- 02% Difference = 12/86 × 100 ≈ 13.95%
- 03Absolute change = 12
- 04Ratio = 92/80 = 1.15
Perguntas Frequentes
What is the difference between percentage change and percentage difference?
Percentage change uses the original value as the denominator (directional). Percentage difference uses the average of both values (symmetric, no direction).
Can percentage change be negative?
Yes, a negative percentage change indicates a decrease. For example, going from 100 to 80 is a -20% change.
What is percentage error?
Percentage error = |experimental - theoretical| / |theoretical| × 100. It measures the accuracy of a measurement against a known standard.
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