Formula for matrix pricing

I am working on a formula for a matrix pricing...
I set up a sheet to make quick estimates with a labor time (then calculates a cost) parts and adds Tax. Keeps the errors down from using a calculator.

I currently have the matrix charts set up as
Grid price 1.png

With this at the bottom to calculate
Grid price 2.png

On paper you can follow each and get the total. but I want to use the Estimate sheet to add taxes and such in for a total.

I want to be able to put say 2.1 in B4 on Est sheet and get the total from the Grid (D11) of $233.10. That I can do but i want to put is any variation of B9-B24 and C8-L8 and get the corresponding total
here is what the Estimate sheet looks like.
Grid price 3.png

I have tried many different combinations with not any good results. Thanks in advance for any help.
Jared

I think I have attached it.

that is correct on how I want it.

but I want it to show the total not Multiply it by the hours. With this Formula if I input 1.5 it take 1.5 * 157.50 but the total should be 157.50.

Ok I got it now. So if I want to be able to add all B4:B19 and make it total off that I will need to do-

=INDEX('Grid Pricing'!$C$9:$L$24, MATCH(INT('Easy Est'!B20), 'Grid Pricing'!$B$9:$B$24,0), MATCH(MOD('Easy EST'!B20,1), 'Grid Pricing'!$C$8:$L$8))

I made a separate spot on 'Calculations only' for the total and the added it instead of 'Calculation only b18' and it works.

Thank you so much!