-70.74% is the change from 557 to 163
Calculation steps:
[( 163 - 557 ) ÷ 557] x 100 = -70.74%
Formula
Percentage change = [(163 - 557) / 557] x 100
Subtract the new number by the original number
163 - 557 = -394
-394 ÷ 557 = -0.7073608617594255
-0.7073608617594255 x 100 = -70.74%