78.91% is the change from 531 to 950
Calculation steps:
[( 950 - 531 ) ÷ 531] x 100 = 78.91%
Formula
Percentage change = [(950 - 531) / 531] x 100
Subtract the new number by the original number
950 - 531 = 419
419 ÷ 531 = 0.7890772128060264
0.7890772128060264 x 100 = 78.91%