35.37% is the change from 639 to 865
Calculation steps:
[( 865 - 639 ) ÷ 639] x 100 = 35.37%
Formula
Percentage change = [(865 - 639) / 639] x 100
Subtract the new number by the original number
865 - 639 = 226
226 ÷ 639 = 0.3536776212832551
0.3536776212832551 x 100 = 35.37%