-87.48% is the change from 591 to 74
Calculation steps:
[( 74 - 591 ) ÷ 591] x 100 = -87.48%
Formula
Percentage change = [(74 - 591) / 591] x 100
Subtract the new number by the original number
74 - 591 = -517
-517 ÷ 591 = -0.8747884940778342
-0.8747884940778342 x 100 = -87.48%