71.22% is the change from 476 to 815
Calculation steps:
[( 815 - 476 ) ÷ 476] x 100 = 71.22%
Formula
Percentage change = [(815 - 476) / 476] x 100
Subtract the new number by the original number
815 - 476 = 339
339 ÷ 476 = 0.7121848739495799
0.7121848739495799 x 100 = 71.22%