-85.31% is the change from 524 to 77
Calculation steps:
[( 77 - 524 ) ÷ 524] x 100 = -85.31%
Formula
Percentage change = [(77 - 524) / 524] x 100
Subtract the new number by the original number
77 - 524 = -447
-447 ÷ 524 = -0.8530534351145038
-0.8530534351145038 x 100 = -85.31%