59.36% is the change from 251 to 400
Calculation steps:
[( 400 - 251 ) ÷ 251] x 100 = 59.36%
Formula
Percentage change = [(400 - 251) / 251] x 100
Subtract the new number by the original number
400 - 251 = 149
149 ÷ 251 = 0.5936254980079682
0.5936254980079682 x 100 = 59.36%