71.37% is the change from 475 to 814
Calculation steps:
[( 814 - 475 ) ÷ 475] x 100 = 71.37%
Formula
Percentage change = [(814 - 475) / 475] x 100
Subtract the new number by the original number
814 - 475 = 339
339 ÷ 475 = 0.7136842105263158
0.7136842105263158 x 100 = 71.37%