71.07% is the change from 394 to 674
Calculation steps:
[( 674 - 394 ) ÷ 394] x 100 = 71.07%
Formula
Percentage change = [(674 - 394) / 394] x 100
Subtract the new number by the original number
674 - 394 = 280
280 ÷ 394 = 0.7106598984771574
0.7106598984771574 x 100 = 71.07%