134.95% is the change from 392 to 921
Calculation steps:
[( 921 - 392 ) ÷ 392] x 100 = 134.95%
Formula
Percentage change = [(921 - 392) / 392] x 100
Subtract the new number by the original number
921 - 392 = 529
529 ÷ 392 = 1.3494897959183674
1.3494897959183674 x 100 = 134.95%