-57.47% is the change from 87 to 37
Calculation steps:
[( 37 - 87 ) ÷ 87] x 100 = -57.47%
Formula
Percentage change = [(37 - 87) / 87] x 100
Subtract the new number by the original number
37 - 87 = -50
-50 ÷ 87 = -0.5747126436781609
-0.5747126436781609 x 100 = -57.47%