-78.97% is the change from 409 to 86
Calculation steps:
[( 86 - 409 ) ÷ 409] x 100 = -78.97%
Formula
Percentage change = [(86 - 409) / 409] x 100
Subtract the new number by the original number
86 - 409 = -323
-323 ÷ 409 = -0.7897310513447433
-0.7897310513447433 x 100 = -78.97%