36.51% is the change from 608 to 830
Calculation steps:
[( 830 - 608 ) ÷ 608] x 100 = 36.51%
Formula
Percentage change = [(830 - 608) / 608] x 100
Subtract the new number by the original number
830 - 608 = 222
222 ÷ 608 = 0.3651315789473684
0.3651315789473684 x 100 = 36.51%