-98.24% is the change from 398 to 7
Calculation steps:
[( 7 - 398 ) ÷ 398] x 100 = -98.24%
Formula
Percentage change = [(7 - 398) / 398] x 100
Subtract the new number by the original number
7 - 398 = -391
-391 ÷ 398 = -0.9824120603015075
-0.9824120603015075 x 100 = -98.24%