48.67% is the change from 639 to 950
Calculation steps:
[( 950 - 639 ) ÷ 639] x 100 = 48.67%
Formula
Percentage change = [(950 - 639) / 639] x 100
Subtract the new number by the original number
950 - 639 = 311
311 ÷ 639 = 0.486697965571205
0.486697965571205 x 100 = 48.67%