121.57% is the change from 394 to 873
Calculation steps:
[( 873 - 394 ) ÷ 394] x 100 = 121.57%
Formula
Percentage change = [(873 - 394) / 394] x 100
Subtract the new number by the original number
873 - 394 = 479
479 ÷ 394 = 1.215736040609137
1.215736040609137 x 100 = 121.57%