-1.76% is the change from 397 to 390
Calculation steps:
[( 390 - 397 ) ÷ 397] x 100 = -1.76%
Formula
Percentage change = [(390 - 397) / 397] x 100
Subtract the new number by the original number
390 - 397 = -7
-7 ÷ 397 = -0.017632241813602016
-0.017632241813602016 x 100 = -1.76%