-34.16% is the change from 931 to 613
Calculation steps:
[( 613 - 931 ) ÷ 931] x 100 = -34.16%
Formula
Percentage change = [(613 - 931) / 931] x 100
Subtract the new number by the original number
613 - 931 = -318
-318 ÷ 931 = -0.34156820622986034
-0.34156820622986034 x 100 = -34.16%