-37.5% is the change from 56 to 35
Calculation steps:
[( 35 - 56 ) ÷ 56] x 100 = -37.5%
Formula
Percentage change = [(35 - 56) / 56] x 100
Subtract the new number by the original number
35 - 56 = -21
-21 ÷ 56 = -0.375
-0.375 x 100 = -37.5%
Example