-1.01% is the change from 397 to 393
Calculation steps:
[( 393 - 397 ) ÷ 397] x 100 = -1.01%
Formula
Percentage change = [(393 - 397) / 397] x 100
Subtract the new number by the original number
393 - 397 = -4
-4 ÷ 397 = -0.010075566750629723
-0.010075566750629723 x 100 = -1.01%