Calculator Error? What am I missing?

I’m playing around with the calculator trying see how low I can try get the dealer to go for a 2024 XC90 plugin hybrid since they have plenty of 2025s and the 2025.5 is coming out soon. At two years, the RV is 72% and I can get 12k in incentives. I’m trying to get 10%+ MSRP off.

How does a monthly 15 dollar depreciation charge equate to a total of $2,328? Which number is correct? Both? One?

The good news is that $459*24 = $11,016. Note that neither breakdown quite adds up.

Is it possible that one of the rebates counts as about $2,000 of CCR, so that you’re not paying that depreciation but it shows up in the calculator?