-39.37% is the change from 917 to 556
Calculation steps:
[( 556 - 917 ) ÷ 917] x 100 = -39.37%
Formula
Percentage change = [(556 - 917) / 917] x 100
Subtract the new number by the original number
556 - 917 = -361
-361 ÷ 917 = -0.3936750272628135
-0.3936750272628135 x 100 = -39.37%