-68.94% is the change from 834 to 259
Calculation steps:
[( 259 - 834 ) ÷ 834] x 100 = -68.94%
Formula
Percentage change = [(259 - 834) / 834] x 100
Subtract the new number by the original number
259 - 834 = -575
-575 ÷ 834 = -0.6894484412470024
-0.6894484412470024 x 100 = -68.94%