-99.74% is the change from 387 to 1
Calculation steps:
[( 1 - 387 ) ÷ 387] x 100 = -99.74%
Formula
Percentage change = [(1 - 387) / 387] x 100
Subtract the new number by the original number
1 - 387 = -386
-386 ÷ 387 = -0.9974160206718347
-0.9974160206718347 x 100 = -99.74%