-69.18% is the change from 863 to 266
Calculation steps:
[( 266 - 863 ) ÷ 863] x 100 = -69.18%
Formula
Percentage change = [(266 - 863) / 863] x 100
Subtract the new number by the original number
266 - 863 = -597
-597 ÷ 863 = -0.6917728852838934
-0.6917728852838934 x 100 = -69.18%