-83.71% is the change from 534 to 87
Calculation steps:
[( 87 - 534 ) ÷ 534] x 100 = -83.71%
Formula
Percentage change = [(87 - 534) / 534] x 100
Subtract the new number by the original number
87 - 534 = -447
-447 ÷ 534 = -0.8370786516853933
-0.8370786516853933 x 100 = -83.71%