57.47% is the change from 87 to 137
Calculation steps:
[( 137 - 87 ) ÷ 87] x 100 = 57.47%
Formula
Percentage change = [(137 - 87) / 87] x 100
Subtract the new number by the original number
137 - 87 = 50
50 ÷ 87 = 0.5747126436781609
0.5747126436781609 x 100 = 57.47%