-99.74% is the change from 388 to 1
Calculation steps:
[( 1 - 388 ) ÷ 388] x 100 = -99.74%
Formula
Percentage change = [(1 - 388) / 388] x 100
Subtract the new number by the original number
1 - 388 = -387
-387 ÷ 388 = -0.9974226804123711
-0.9974226804123711 x 100 = -99.74%