82.4% is the change from 392 to 715
Calculation steps:
[( 715 - 392 ) ÷ 392] x 100 = 82.4%
Formula
Percentage change = [(715 - 392) / 392] x 100
Subtract the new number by the original number
715 - 392 = 323
323 ÷ 392 = 0.8239795918367347
0.8239795918367347 x 100 = 82.4%