Sales tax

We'd have to know the tax rate to determine this......

I can help you with Washington Sales Tax. 

Washington's State sales tax is 6.5%, so all you have to do is take the original amount, 945, and multiply it by 6.5%

945*6.5% = 61.425

Now, add that to 945.

61.425+945 = 1006.425, or approximately $1006.43.