41% is the change from 578 to 815
Calculation steps:
[( 815 - 578 ) ÷ 578] x 100 = 41%
Formula
Percentage change = [(815 - 578) / 578] x 100
Subtract the new number by the original number
815 - 578 = 237
237 ÷ 578 = 0.4100346020761246
0.4100346020761246 x 100 = 41%