-34.67% is the change from 398 to 260
Calculation steps:
[( 260 - 398 ) ÷ 398] x 100 = -34.67%
Formula
Percentage change = [(260 - 398) / 398] x 100
Subtract the new number by the original number
260 - 398 = -138
-138 ÷ 398 = -0.34673366834170855
-0.34673366834170855 x 100 = -34.67%