-6.74% is the change from 341 to 318
Calculation steps:
[( 318 - 341 ) ÷ 341] x 100 = -6.74%
Formula
Percentage change = [(318 - 341) / 341] x 100
Subtract the new number by the original number
318 - 341 = -23
-23 ÷ 341 = -0.06744868035190615
-0.06744868035190615 x 100 = -6.74%