-23.4% is the change from 718 to 550
Calculation steps:
[( 550 - 718 ) ÷ 718] x 100 = -23.4%
Formula
Percentage change = [(550 - 718) / 718] x 100
Subtract the new number by the original number
550 - 718 = -168
-168 ÷ 718 = -0.233983286908078
-0.233983286908078 x 100 = -23.4%