-16.89% is the change from 663 to 551
Calculation steps:
[( 551 - 663 ) ÷ 663] x 100 = -16.89%
Formula
Percentage change = [(551 - 663) / 663] x 100
Subtract the new number by the original number
551 - 663 = -112
-112 ÷ 663 = -0.1689291101055807
-0.1689291101055807 x 100 = -16.89%