-5.23% is the change from 344 to 326
Calculation steps:
[( 326 - 344 ) ÷ 344] x 100 = -5.23%
Formula
Percentage change = [(326 - 344) / 344] x 100
Subtract the new number by the original number
326 - 344 = -18
-18 ÷ 344 = -0.05232558139534884
-0.05232558139534884 x 100 = -5.23%