250.57% is the change from 87 to 305
Calculation steps:
[( 305 - 87 ) ÷ 87] x 100 = 250.57%
Formula
Percentage change = [(305 - 87) / 87] x 100
Subtract the new number by the original number
305 - 87 = 218
218 ÷ 87 = 2.5057471264367814
2.5057471264367814 x 100 = 250.57%