-39.3% is the change from 659 to 400
Calculation steps:
[( 400 - 659 ) ÷ 659] x 100 = -39.3%
Formula
Percentage change = [(400 - 659) / 659] x 100
Subtract the new number by the original number
400 - 659 = -259
-259 ÷ 659 = -0.3930197268588771
-0.3930197268588771 x 100 = -39.3%