-99.74% is the change from 380 to 1
Calculation steps:
[( 1 - 380 ) ÷ 380] x 100 = -99.74%
Formula
Percentage change = [(1 - 380) / 380] x 100
Subtract the new number by the original number
1 - 380 = -379
-379 ÷ 380 = -0.9973684210526316
-0.9973684210526316 x 100 = -99.74%