-92.82% is the change from 557 to 40
Calculation steps:
[( 40 - 557 ) ÷ 557] x 100 = -92.82%
Formula
Percentage change = [(40 - 557) / 557] x 100
Subtract the new number by the original number
40 - 557 = -517
-517 ÷ 557 = -0.9281867145421903
-0.9281867145421903 x 100 = -92.82%