-79% is the change from 381 to 80
Calculation steps:
[( 80 - 381 ) ÷ 381] x 100 = -79%
Formula
Percentage change = [(80 - 381) / 381] x 100
Subtract the new number by the original number
80 - 381 = -301
-301 ÷ 381 = -0.7900262467191601
-0.7900262467191601 x 100 = -79%