-71.19% is the change from 899 to 259
Calculation steps:
[( 259 - 899 ) ÷ 899] x 100 = -71.19%
Formula
Percentage change = [(259 - 899) / 899] x 100
Subtract the new number by the original number
259 - 899 = -640
-640 ÷ 899 = -0.7119021134593994
-0.7119021134593994 x 100 = -71.19%