Can someone verify the lease calculation please!

Hi I need hackrs to check the lease calculations.
Acura mdx tech 2018
MSRP:$51595
SELLING : $44235
MF:0.0005
RV:56%
tax rate:8.625%
36/10miles

monthly payment is $507
but calculator shows $503
where is extra $4 going?
I am also getting another $500 rebate on top should I put it as down payment or use to pay the $1250 drive off
which include ,$507 1st month, acquisition $595 and $155 BS fees?

4 posts were merged into an existing topic: MDX 2018 with tech package! How I did it?