i have question in my home work that i was tried to solve it but unfortunate i can't

the question:

Harrison Water Sports has three retail outlets: Seattle, Portland, and Phoenix. The

Seattle store does 50 percent of the total sales in a year, while the Portland store does 35

percent of the total sales. Further analysis indicates that of the sales in Seattle, 20

percent are in boat accessories. The percentage of boat accessories at the Portland store

is 30 and the percentage is 25 at the Phoenix store. Overall, the probability that a sale by

Harrison Water Sports will be for a boat accessory is

my answer:

s= seattle

p= portland

h= phoenix

total sales= p(s)= 0.5 , p=(p)=0.35 , p(h)=1- p(s)+p(p)=1-0.85=0.15

boat accessories= p(s)= 0.2 , p(p)= 0.3 , p(h)= 0.25

i have sum total sales together = 1

and boat accessories = 0.75

0.75/1=0.75

* i found the answer only in the internet and it was 0.2425

which mean that my answer is wrong

i need help please how did they found 0.2425 ???