64.65% is the change from 495 to 815
Calculation steps:
[( 815 - 495 ) ÷ 495] x 100 = 64.65%
Formula
Percentage change = [(815 - 495) / 495] x 100
Subtract the new number by the original number
815 - 495 = 320
320 ÷ 495 = 0.6464646464646465
0.6464646464646465 x 100 = 64.65%