71.94% is the change from 474 to 815
Calculation steps:
[( 815 - 474 ) ÷ 474] x 100 = 71.94%
Formula
Percentage change = [(815 - 474) / 474] x 100
Subtract the new number by the original number
815 - 474 = 341
341 ÷ 474 = 0.7194092827004219
0.7194092827004219 x 100 = 71.94%