80.81% is the change from 344 to 622
Calculation steps:
[( 622 - 344 ) ÷ 344] x 100 = 80.81%
Formula
Percentage change = [(622 - 344) / 344] x 100
Subtract the new number by the original number
622 - 344 = 278
278 ÷ 344 = 0.8081395348837209
0.8081395348837209 x 100 = 80.81%