35.54% is the change from 605 to 820
Calculation steps:
[( 820 - 605 ) ÷ 605] x 100 = 35.54%
Formula
Percentage change = [(820 - 605) / 605] x 100
Subtract the new number by the original number
820 - 605 = 215
215 ÷ 605 = 0.35537190082644626
0.35537190082644626 x 100 = 35.54%