-74.36% is the change from 866 to 222
Calculation steps:
[( 222 - 866 ) ÷ 866] x 100 = -74.36%
Formula
Percentage change = [(222 - 866) / 866] x 100
Subtract the new number by the original number
222 - 866 = -644
-644 ÷ 866 = -0.74364896073903
-0.74364896073903 x 100 = -74.36%