-97.83% is the change from 323 to 7
Calculation steps:
[( 7 - 323 ) ÷ 323] x 100 = -97.83%
Formula
Percentage change = [(7 - 323) / 323] x 100
Subtract the new number by the original number
7 - 323 = -316
-316 ÷ 323 = -0.978328173374613
-0.978328173374613 x 100 = -97.83%