47.29% is the change from 645 to 950
Calculation steps:
[( 950 - 645 ) ÷ 645] x 100 = 47.29%
Formula
Percentage change = [(950 - 645) / 645] x 100
Subtract the new number by the original number
950 - 645 = 305
305 ÷ 645 = 0.4728682170542636
0.4728682170542636 x 100 = 47.29%