151% is the change from 100 to 251
Calculation steps:
[( 251 - 100 ) ÷ 100] x 100 = 151%
Formula
Percentage change = [(251 - 100) / 100] x 100
Subtract the new number by the original number
251 - 100 = 151
151 ÷ 100 = 1.51
1.51 x 100 = 151%
Example