35.99% is the change from 603 to 820
Calculation steps:
[( 820 - 603 ) ÷ 603] x 100 = 35.99%
Formula
Percentage change = [(820 - 603) / 603] x 100
Subtract the new number by the original number
820 - 603 = 217
217 ÷ 603 = 0.3598673300165838
0.3598673300165838 x 100 = 35.99%