20.87% is the change from 647 to 782
Calculation steps:
[( 782 - 647 ) ÷ 647] x 100 = 20.87%
Formula
Percentage change = [(782 - 647) / 647] x 100
Subtract the new number by the original number
782 - 647 = 135
135 ÷ 647 = 0.20865533230293662
0.20865533230293662 x 100 = 20.87%