-98.28% is the change from 407 to 7
Calculation steps:
[( 7 - 407 ) ÷ 407] x 100 = -98.28%
Formula
Percentage change = [(7 - 407) / 407] x 100
Subtract the new number by the original number
7 - 407 = -400
-400 ÷ 407 = -0.9828009828009828
-0.9828009828009828 x 100 = -98.28%