Hello and welcome. Thank you for providing an opportunity to assist you.
As I understand, your Cash Purchase price is $ 13883. As against this, if you go for lease, you would pay $400*24 = $9600 for this.
Having said this, at $313 Per Month, the depreciation cost would be 313*24 = 7512. Therefore, the excess would be $17112 in total as against cash price of 13883 would be 17112-13883 = 3229.
You would be paying more 17112-13883 = 3229.
Therefore, the effective INTEREST COST would be
17112 23.25% total i.e. 11.62% ANNUALLY, FLAT.
I am sure this would help.
You may please leave a positive rating if this helps as this is the only way we are compensated for assisting you. Alternatively, you may revert back with a reply if you need further assistance or if I have missed out on any aspect of your question.