-92.89% is the change from 591 to 42
Calculation steps:
[( 42 - 591 ) ÷ 591] x 100 = -92.89%
Formula
Percentage change = [(42 - 591) / 591] x 100
Subtract the new number by the original number
42 - 591 = -549
-549 ÷ 591 = -0.9289340101522843
-0.9289340101522843 x 100 = -92.89%