87.31% is the change from 134 to 251
Calculation steps:
[( 251 - 134 ) ÷ 134] x 100 = 87.31%
Formula
Percentage change = [(251 - 134) / 134] x 100
Subtract the new number by the original number
251 - 134 = 117
117 ÷ 134 = 0.8731343283582089
0.8731343283582089 x 100 = 87.31%