4.99% is the change from 781 to 820
Calculation steps:
[( 820 - 781 ) ÷ 781] x 100 = 4.99%
Formula
Percentage change = [(820 - 781) / 781] x 100
Subtract the new number by the original number
820 - 781 = 39
39 ÷ 781 = 0.0499359795134443
0.0499359795134443 x 100 = 4.99%