39.23% is the change from 650 to 905
Calculation steps:
[( 905 - 650 ) ÷ 650] x 100 = 39.23%
Formula
Percentage change = [(905 - 650) / 650] x 100
Subtract the new number by the original number
905 - 650 = 255
255 ÷ 650 = 0.3923076923076923
0.3923076923076923 x 100 = 39.23%