21.52% is the change from 683 to 830
Calculation steps:
[( 830 - 683 ) ÷ 683] x 100 = 21.52%
Formula
Percentage change = [(830 - 683) / 683] x 100
Subtract the new number by the original number
830 - 683 = 147
147 ÷ 683 = 0.21522693997071743
0.21522693997071743 x 100 = 21.52%