-67.87% is the change from 806 to 259
Calculation steps:
[( 259 - 806 ) ÷ 806] x 100 = -67.87%
Formula
Percentage change = [(259 - 806) / 806] x 100
Subtract the new number by the original number
259 - 806 = -547
-547 ÷ 806 = -0.6786600496277916
-0.6786600496277916 x 100 = -67.87%