-2.17% is the change from 323 to 316
Calculation steps:
[( 316 - 323 ) ÷ 323] x 100 = -2.17%
Formula
Percentage change = [(316 - 323) / 323] x 100
Subtract the new number by the original number
316 - 323 = -7
-7 ÷ 323 = -0.021671826625386997
-0.021671826625386997 x 100 = -2.17%