-36.03% is the change from 866 to 554
Calculation steps:
[( 554 - 866 ) ÷ 866] x 100 = -36.03%
Formula
Percentage change = [(554 - 866) / 866] x 100
Subtract the new number by the original number
554 - 866 = -312
-312 ÷ 866 = -0.36027713625866054
-0.36027713625866054 x 100 = -36.03%