22.17% is the change from 645 to 788
Calculation steps:
[( 788 - 645 ) ÷ 645] x 100 = 22.17%
Formula
Percentage change = [(788 - 645) / 645] x 100
Subtract the new number by the original number
788 - 645 = 143
143 ÷ 645 = 0.22170542635658916
0.22170542635658916 x 100 = 22.17%