21.6% is the change from 648 to 788
Calculation steps:
[( 788 - 648 ) ÷ 648] x 100 = 21.6%
Formula
Percentage change = [(788 - 648) / 648] x 100
Subtract the new number by the original number
788 - 648 = 140
140 ÷ 648 = 0.21604938271604937
0.21604938271604937 x 100 = 21.6%