-67.32% is the change from 866 to 283
Calculation steps:
[( 283 - 866 ) ÷ 866] x 100 = -67.32%
Formula
Percentage change = [(283 - 866) / 866] x 100
Subtract the new number by the original number
283 - 866 = -583
-583 ÷ 866 = -0.6732101616628176
-0.6732101616628176 x 100 = -67.32%