-10.86% is the change from 663 to 591
Calculation steps:
[( 591 - 663 ) ÷ 663] x 100 = -10.86%
Formula
Percentage change = [(591 - 663) / 663] x 100
Subtract the new number by the original number
591 - 663 = -72
-72 ÷ 663 = -0.1085972850678733
-0.1085972850678733 x 100 = -10.86%