-71.38% is the change from 807 to 231
Calculation steps:
[( 231 - 807 ) ÷ 807] x 100 = -71.38%
Formula
Percentage change = [(231 - 807) / 807] x 100
Subtract the new number by the original number
231 - 807 = -576
-576 ÷ 807 = -0.7137546468401487
-0.7137546468401487 x 100 = -71.38%