81.93% is the change from 393 to 715
Calculation steps:
[( 715 - 393 ) ÷ 393] x 100 = 81.93%
Formula
Percentage change = [(715 - 393) / 393] x 100
Subtract the new number by the original number
715 - 393 = 322
322 ÷ 393 = 0.8193384223918575
0.8193384223918575 x 100 = 81.93%