This is my constructed calculator:
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You already have the residual value. MSRP and RV(%) is just to get the residual value, in your case is $39680. You need to make sure this is the number shows on the LH calculator.
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Acq fee, dealer fee and reg fee are added as cap cost, so just add them to the selling price.
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Your $7500 is calculated as 6513 cap cost reduction, 449 title fee, 536 first month payment in the contract. You still got the full amount of rebates but they are constructed a bit differently by your dealer.
Edit: As Matt says, tax numbers are a bit off. This is my attempt so don’t take it very serious lol.
Updates 2:
Given the total tax is $2101, this should be calculated as the total of payments * tax rate. So the $6513 cap cost should be considered as taxable. Here is updated calculator:
The difference between 7500-6513 is used as title fee and the first monthly payment. Thus the actual das is 0 and there are remaining 35 payments at $535