-80.93% is the change from 409 to 78
Calculation steps:
[( 78 - 409 ) ÷ 409] x 100 = -80.93%
Formula
Percentage change = [(78 - 409) / 409] x 100
Subtract the new number by the original number
78 - 409 = -331
-331 ÷ 409 = -0.8092909535452323
-0.8092909535452323 x 100 = -80.93%