-98.77% is the change from 324 to 4
Calculation steps:
[( 4 - 324 ) ÷ 324] x 100 = -98.77%
Formula
Percentage change = [(4 - 324) / 324] x 100
Subtract the new number by the original number
4 - 324 = -320
-320 ÷ 324 = -0.9876543209876543
-0.9876543209876543 x 100 = -98.77%