71.72% is the change from 495 to 850
Calculation steps:
[( 850 - 495 ) ÷ 495] x 100 = 71.72%
Formula
Percentage change = [(850 - 495) / 495] x 100
Subtract the new number by the original number
850 - 495 = 355
355 ÷ 495 = 0.7171717171717171
0.7171717171717171 x 100 = 71.72%