-81.42% is the change from 409 to 76
Calculation steps:
[( 76 - 409 ) ÷ 409] x 100 = -81.42%
Formula
Percentage change = [(76 - 409) / 409] x 100
Subtract the new number by the original number
76 - 409 = -333
-333 ÷ 409 = -0.8141809290953546
-0.8141809290953546 x 100 = -81.42%