-6.21% is the change from 322 to 302
Calculation steps:
[( 302 - 322 ) ÷ 322] x 100 = -6.21%
Formula
Percentage change = [(302 - 322) / 322] x 100
Subtract the new number by the original number
302 - 322 = -20
-20 ÷ 322 = -0.062111801242236024
-0.062111801242236024 x 100 = -6.21%