15.54% is the change from 251 to 290
Calculation steps:
[( 290 - 251 ) ÷ 251] x 100 = 15.54%
Formula
Percentage change = [(290 - 251) / 251] x 100
Subtract the new number by the original number
290 - 251 = 39
39 ÷ 251 = 0.1553784860557769
0.1553784860557769 x 100 = 15.54%