121.07% is the change from 394 to 871
Calculation steps:
[( 871 - 394 ) ÷ 394] x 100 = 121.07%
Formula
Percentage change = [(871 - 394) / 394] x 100
Subtract the new number by the original number
871 - 394 = 477
477 ÷ 394 = 1.2106598984771573
1.2106598984771573 x 100 = 121.07%