254.9% is the change from 51 to 181
Calculation steps:
[( 181 - 51 ) ÷ 51] x 100 = 254.9%
Formula
Percentage change = [(181 - 51) / 51] x 100
Subtract the new number by the original number
181 - 51 = 130
130 ÷ 51 = 2.549019607843137
2.549019607843137 x 100 = 254.9%