-97.85% is the change from 326 to 7
Calculation steps:
[( 7 - 326 ) ÷ 326] x 100 = -97.85%
Formula
Percentage change = [(7 - 326) / 326] x 100
Subtract the new number by the original number
7 - 326 = -319
-319 ÷ 326 = -0.9785276073619632
-0.9785276073619632 x 100 = -97.85%