169.3% is the change from 342 to 921
Calculation steps:
[( 921 - 342 ) ÷ 342] x 100 = 169.3%
Formula
Percentage change = [(921 - 342) / 342] x 100
Subtract the new number by the original number
921 - 342 = 579
579 ÷ 342 = 1.6929824561403508
1.6929824561403508 x 100 = 169.3%