72% is the change from 475 to 817
Calculation steps:
[( 817 - 475 ) ÷ 475] x 100 = 72%
Formula
Percentage change = [(817 - 475) / 475] x 100
Subtract the new number by the original number
817 - 475 = 342
342 ÷ 475 = 0.72
0.72 x 100 = 72%
Example