21.77% is the change from 643 to 783
Calculation steps:
[( 783 - 643 ) ÷ 643] x 100 = 21.77%
Formula
Percentage change = [(783 - 643) / 643] x 100
Subtract the new number by the original number
783 - 643 = 140
140 ÷ 643 = 0.2177293934681182
0.2177293934681182 x 100 = 21.77%