in reply to Re^2: Reverse engineering a formula...
in thread Reverse engineering a formula...

How's this for a guess? A 24-month lease 

An initial price of         12,493.32

A first payment of           1,231.36
+ 23 monthly payements of      843.24
=====================================
Total cost 
(- tax relief)              20,587.44

Daily interest rate              0.008720
Annual Equivalent rate          17.967469
Annual effective rate 
(inc. one off payments)         18.930167

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Other numbers include one-off admin charges and daily/weekly effective costs?

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