-35.15% is the change from 956 to 620
Calculation steps:
[( 620 - 956 ) ÷ 956] x 100 = -35.15%
Formula
Percentage change = [(620 - 956) / 956] x 100
Subtract the new number by the original number
620 - 956 = -336
-336 ÷ 956 = -0.3514644351464435
-0.3514644351464435 x 100 = -35.15%