-34.76% is the change from 397 to 259
Calculation steps:
[( 259 - 397 ) ÷ 397] x 100 = -34.76%
Formula
Percentage change = [(259 - 397) / 397] x 100
Subtract the new number by the original number
259 - 397 = -138
-138 ÷ 397 = -0.34760705289672544
-0.34760705289672544 x 100 = -34.76%