-1.24% is the change from 322 to 318
Calculation steps:
[( 318 - 322 ) ÷ 322] x 100 = -1.24%
Formula
Percentage change = [(318 - 322) / 322] x 100
Subtract the new number by the original number
318 - 322 = -4
-4 ÷ 322 = -0.012422360248447204
-0.012422360248447204 x 100 = -1.24%