Respuesta :

(after price-initial price\initial price)100=percent of change
the initial price = 72
(a week later)after price = 87

87-72=15
15/72=.20833333333
.20833333333*100= 20.833333333
the percent of change of initial price of $72 and the after price of $87= 20.833333333= 2.08%
tawww

Answer:

21%

Step-by-step explanation:

87-72=15

15 divided by 72 = 0.2083

0.2083 as a percent = 20.83%

if you want to round to the nearest whole percent, it would be 21%

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