-3.73% is the change from 322 to 310
Calculation steps:
[( 310 - 322 ) ÷ 322] x 100 = -3.73%
Formula
Percentage change = [(310 - 322) / 322] x 100
Subtract the new number by the original number
310 - 322 = -12
-12 ÷ 322 = -0.037267080745341616
-0.037267080745341616 x 100 = -3.73%