-86.87% is the change from 259 to 34
Calculation steps:
[( 34 - 259 ) ÷ 259] x 100 = -86.87%
Formula
Percentage change = [(34 - 259) / 259] x 100
Subtract the new number by the original number
34 - 259 = -225
-225 ÷ 259 = -0.8687258687258688
-0.8687258687258688 x 100 = -86.87%