-21.2% is the change from 698 to 550
Calculation steps:
[( 550 - 698 ) ÷ 698] x 100 = -21.2%
Formula
Percentage change = [(550 - 698) / 698] x 100
Subtract the new number by the original number
550 - 698 = -148
-148 ÷ 698 = -0.21203438395415472
-0.21203438395415472 x 100 = -21.2%