107.17% is the change from 251 to 520
Calculation steps:
[( 520 - 251 ) ÷ 251] x 100 = 107.17%
Formula
Percentage change = [(520 - 251) / 251] x 100
Subtract the new number by the original number
520 - 251 = 269
269 ÷ 251 = 1.0717131474103585
1.0717131474103585 x 100 = 107.17%