-30.57% is the change from 916 to 636
Calculation steps:
[( 636 - 916 ) ÷ 916] x 100 = -30.57%
Formula
Percentage change = [(636 - 916) / 916] x 100
Subtract the new number by the original number
636 - 916 = -280
-280 ÷ 916 = -0.3056768558951965
-0.3056768558951965 x 100 = -30.57%