-36.8% is the change from 970 to 613
Calculation steps:
[( 613 - 970 ) ÷ 970] x 100 = -36.8%
Formula
Percentage change = [(613 - 970) / 970] x 100
Subtract the new number by the original number
613 - 970 = -357
-357 ÷ 970 = -0.3680412371134021
-0.3680412371134021 x 100 = -36.8%