-93.04% is the change from 345 to 24
Calculation steps:
[( 24 - 345 ) ÷ 345] x 100 = -93.04%
Formula
Percentage change = [(24 - 345) / 345] x 100
Subtract the new number by the original number
24 - 345 = -321
-321 ÷ 345 = -0.9304347826086956
-0.9304347826086956 x 100 = -93.04%