85.91% is the change from 511 to 950
Calculation steps:
[( 950 - 511 ) ÷ 511] x 100 = 85.91%
Formula
Percentage change = [(950 - 511) / 511] x 100
Subtract the new number by the original number
950 - 511 = 439
439 ÷ 511 = 0.8590998043052838
0.8590998043052838 x 100 = 85.91%