-9.63% is the change from 322 to 291
Calculation steps:
[( 291 - 322 ) ÷ 322] x 100 = -9.63%
Formula
Percentage change = [(291 - 322) / 322] x 100
Subtract the new number by the original number
291 - 322 = -31
-31 ÷ 322 = -0.09627329192546584
-0.09627329192546584 x 100 = -9.63%