-77.19% is the change from 57 to 13
Calculation steps:
[( 13 - 57 ) ÷ 57] x 100 = -77.19%
Formula
Percentage change = [(13 - 57) / 57] x 100
Subtract the new number by the original number
13 - 57 = -44
-44 ÷ 57 = -0.7719298245614035
-0.7719298245614035 x 100 = -77.19%