-39.32% is the change from 918 to 557
Calculation steps:
[( 557 - 918 ) ÷ 918] x 100 = -39.32%
Formula
Percentage change = [(557 - 918) / 918] x 100
Subtract the new number by the original number
557 - 918 = -361
-361 ÷ 918 = -0.39324618736383443
-0.39324618736383443 x 100 = -39.32%