23.79% is the change from 639 to 791
Calculation steps:
[( 791 - 639 ) ÷ 639] x 100 = 23.79%
Formula
Percentage change = [(791 - 639) / 639] x 100
Subtract the new number by the original number
791 - 639 = 152
152 ÷ 639 = 0.2378716744913928
0.2378716744913928 x 100 = 23.79%