-75.54% is the change from 327 to 80
Calculation steps:
[( 80 - 327 ) ÷ 327] x 100 = -75.54%
Formula
Percentage change = [(80 - 327) / 327] x 100
Subtract the new number by the original number
80 - 327 = -247
-247 ÷ 327 = -0.7553516819571865
-0.7553516819571865 x 100 = -75.54%