-71.3% is the change from 805 to 231
Calculation steps:
[( 231 - 805 ) ÷ 805] x 100 = -71.3%
Formula
Percentage change = [(231 - 805) / 805] x 100
Subtract the new number by the original number
231 - 805 = -574
-574 ÷ 805 = -0.7130434782608696
-0.7130434782608696 x 100 = -71.3%