-37.18% is the change from 866 to 544
Calculation steps:
[( 544 - 866 ) ÷ 866] x 100 = -37.18%
Formula
Percentage change = [(544 - 866) / 866] x 100
Subtract the new number by the original number
544 - 866 = -322
-322 ÷ 866 = -0.371824480369515
-0.371824480369515 x 100 = -37.18%