-60.92% is the change from 87 to 34
Calculation steps:
[( 34 - 87 ) ÷ 87] x 100 = -60.92%
Formula
Percentage change = [(34 - 87) / 87] x 100
Subtract the new number by the original number
34 - 87 = -53
-53 ÷ 87 = -0.6091954022988506
-0.6091954022988506 x 100 = -60.92%