-17.64% is the change from 669 to 551
Calculation steps:
[( 551 - 669 ) ÷ 669] x 100 = -17.64%
Formula
Percentage change = [(551 - 669) / 669] x 100
Subtract the new number by the original number
551 - 669 = -118
-118 ÷ 669 = -0.17638266068759342
-0.17638266068759342 x 100 = -17.64%