19.41% is the change from 639 to 763
Calculation steps:
[( 763 - 639 ) ÷ 639] x 100 = 19.41%
Formula
Percentage change = [(763 - 639) / 639] x 100
Subtract the new number by the original number
763 - 639 = 124
124 ÷ 639 = 0.19405320813771518
0.19405320813771518 x 100 = 19.41%