167.73% is the change from 344 to 921
Calculation steps:
[( 921 - 344 ) ÷ 344] x 100 = 167.73%
Formula
Percentage change = [(921 - 344) / 344] x 100
Subtract the new number by the original number
921 - 344 = 577
577 ÷ 344 = 1.677325581395349
1.677325581395349 x 100 = 167.73%