-96.82% is the change from 409 to 13
Calculation steps:
[( 13 - 409 ) ÷ 409] x 100 = -96.82%
Formula
Percentage change = [(13 - 409) / 409] x 100
Subtract the new number by the original number
13 - 409 = -396
-396 ÷ 409 = -0.9682151589242054
-0.9682151589242054 x 100 = -96.82%