-10.56% is the change from 900 to 805
Calculation steps:
[( 805 - 900 ) ÷ 900] x 100 = -10.56%
Formula
Percentage change = [(805 - 900) / 900] x 100
Subtract the new number by the original number
805 - 900 = -95
-95 ÷ 900 = -0.10555555555555556
-0.10555555555555556 x 100 = -10.56%