-6.98% is the change from 344 to 320
Calculation steps:
[( 320 - 344 ) ÷ 344] x 100 = -6.98%
Formula
Percentage change = [(320 - 344) / 344] x 100
Subtract the new number by the original number
320 - 344 = -24
-24 ÷ 344 = -0.06976744186046512
-0.06976744186046512 x 100 = -6.98%