6.21% is the change from 322 to 342
Calculation steps:
[( 342 - 322 ) ÷ 322] x 100 = 6.21%
Formula
Percentage change = [(342 - 322) / 322] x 100
Subtract the new number by the original number
342 - 322 = 20
20 ÷ 322 = 0.062111801242236024
0.062111801242236024 x 100 = 6.21%