-85.76% is the change from 611 to 87
Calculation steps:
[( 87 - 611 ) ÷ 611] x 100 = -85.76%
Formula
Percentage change = [(87 - 611) / 611] x 100
Subtract the new number by the original number
87 - 611 = -524
-524 ÷ 611 = -0.8576104746317512
-0.8576104746317512 x 100 = -85.76%