79.59% is the change from 392 to 704
Calculation steps:
[( 704 - 392 ) ÷ 392] x 100 = 79.59%
Formula
Percentage change = [(704 - 392) / 392] x 100
Subtract the new number by the original number
704 - 392 = 312
312 ÷ 392 = 0.7959183673469388
0.7959183673469388 x 100 = 79.59%