-86.89% is the change from 557 to 73
Calculation steps:
[( 73 - 557 ) ÷ 557] x 100 = -86.89%
Formula
Percentage change = [(73 - 557) / 557] x 100
Subtract the new number by the original number
73 - 557 = -484
-484 ÷ 557 = -0.8689407540394973
-0.8689407540394973 x 100 = -86.89%