-69.24% is the change from 842 to 259
Calculation steps:
[( 259 - 842 ) ÷ 842] x 100 = -69.24%
Formula
Percentage change = [(259 - 842) / 842] x 100
Subtract the new number by the original number
259 - 842 = -583
-583 ÷ 842 = -0.6923990498812351
-0.6923990498812351 x 100 = -69.24%