-82.52% is the change from 326 to 57
Calculation steps:
[( 57 - 326 ) ÷ 326] x 100 = -82.52%
Formula
Percentage change = [(57 - 326) / 326] x 100
Subtract the new number by the original number
57 - 326 = -269
-269 ÷ 326 = -0.8251533742331288
-0.8251533742331288 x 100 = -82.52%