-93.31% is the change from 344 to 23
Calculation steps:
[( 23 - 344 ) ÷ 344] x 100 = -93.31%
Formula
Percentage change = [(23 - 344) / 344] x 100
Subtract the new number by the original number
23 - 344 = -321
-321 ÷ 344 = -0.9331395348837209
-0.9331395348837209 x 100 = -93.31%