24.3% is the change from 251 to 312
Calculation steps:
[( 312 - 251 ) ÷ 251] x 100 = 24.3%
Formula
Percentage change = [(312 - 251) / 251] x 100
Subtract the new number by the original number
312 - 251 = 61
61 ÷ 251 = 0.24302788844621515
0.24302788844621515 x 100 = 24.3%