One time lease more expensive? (2017 Chevy Volt Base)

Hi experts,

I got quoted 2017 Chevy Volt Base model for 121 per month for 36 months with 1500 down (which i will get back due to CA rebate). When I asked for quotation for one pay lease, it came out higher! Didn’t make sense and wanted to see if anyone knows why? One pay was 5981.96 vs 120.84 per month for 36 months plus 1500 down which equals 5850.24.

MSRP: $35,120
Selling price: $30,850
Rebates: 10,360 (Toyota Car rebate included)
Tax on Rebates: $910.25 (8.75 tax rate)
Ttl capped fees: $595
DMV fee: $303
Lease Money Factor: .00062
Residual: 51% 17,911.20
Term: 36/ 10000 miles
Payment: $111.12. $120.84 (taxes included)

I get how this worked, but I don’t get how one pay is higher. This is one pay quote: no idea if this will copy and paste.

opps. one pay quote is this one:

Try putting these numbers in the lease calculator. Renember to check one pay and raise MF to remove acq fee.

Forgive me if I’m wrong but the adjusted cap cost in your one lease quote seems off. I thought the adjusted cap cost, which is important in calculating your rent charge a month, is the cap cost after all rebates subtracted. If this is the case, they forgot to reduce the 10k+ in rebates for the adjusted cap cost. That would definitely make the one pay lease much higher thsn it us supposed to be.