133.76% is the change from 394 to 921
Calculation steps:
[( 921 - 394 ) ÷ 394] x 100 = 133.76%
Formula
Percentage change = [(921 - 394) / 394] x 100
Subtract the new number by the original number
921 - 394 = 527
527 ÷ 394 = 1.3375634517766497
1.3375634517766497 x 100 = 133.76%