-51.31% is the change from 801 to 390
Calculation steps:
[( 390 - 801 ) ÷ 801] x 100 = -51.31%
Formula
Percentage change = [(390 - 801) / 801] x 100
Subtract the new number by the original number
390 - 801 = -411
-411 ÷ 801 = -0.5131086142322098
-0.5131086142322098 x 100 = -51.31%