-99.07% is the change from 324 to 3
Calculation steps:
[( 3 - 324 ) ÷ 324] x 100 = -99.07%
Formula
Percentage change = [(3 - 324) / 324] x 100
Subtract the new number by the original number
3 - 324 = -321
-321 ÷ 324 = -0.9907407407407407
-0.9907407407407407 x 100 = -99.07%