30.1% is the change from 628 to 817
Calculation steps:
[( 817 - 628 ) ÷ 628] x 100 = 30.1%
Formula
Percentage change = [(817 - 628) / 628] x 100
Subtract the new number by the original number
817 - 628 = 189
189 ÷ 628 = 0.30095541401273884
0.30095541401273884 x 100 = 30.1%