-98.4% is the change from 438 to 7
Calculation steps:
[( 7 - 438 ) ÷ 438] x 100 = -98.4%
Formula
Percentage change = [(7 - 438) / 438] x 100
Subtract the new number by the original number
7 - 438 = -431
-431 ÷ 438 = -0.9840182648401826
-0.9840182648401826 x 100 = -98.4%