90.38% is the change from 499 to 950
Calculation steps:
[( 950 - 499 ) ÷ 499] x 100 = 90.38%
Formula
Percentage change = [(950 - 499) / 499] x 100
Subtract the new number by the original number
950 - 499 = 451
451 ÷ 499 = 0.9038076152304609
0.9038076152304609 x 100 = 90.38%