-69.17% is the change from 866 to 267
Calculation steps:
[( 267 - 866 ) ÷ 866] x 100 = -69.17%
Formula
Percentage change = [(267 - 866) / 866] x 100
Subtract the new number by the original number
267 - 866 = -599
-599 ÷ 866 = -0.6916859122401847
-0.6916859122401847 x 100 = -69.17%