-98.29% is the change from 409 to 7
Calculation steps:
[( 7 - 409 ) ÷ 409] x 100 = -98.29%
Formula
Percentage change = [(7 - 409) / 409] x 100
Subtract the new number by the original number
7 - 409 = -402
-402 ÷ 409 = -0.9828850855745721
-0.9828850855745721 x 100 = -98.29%