66.23% is the change from 151 to 251
Calculation steps:
[( 251 - 151 ) ÷ 151] x 100 = 66.23%
Formula
Percentage change = [(251 - 151) / 151] x 100
Subtract the new number by the original number
251 - 151 = 100
100 ÷ 151 = 0.6622516556291391
0.6622516556291391 x 100 = 66.23%