-72.17% is the change from 557 to 155
Calculation steps:
[( 155 - 557 ) ÷ 557] x 100 = -72.17%
Formula
Percentage change = [(155 - 557) / 557] x 100
Subtract the new number by the original number
155 - 557 = -402
-402 ÷ 557 = -0.7217235188509874
-0.7217235188509874 x 100 = -72.17%