Hello my question is what is Leasing/Depreciation it is making my once profitable flights now not profitable at all is there anything i can do to cut the price down ?
Depreciation is the devaluation of assets over a given period of time. This implies that if you were to sell your current assets i.e Aircraft. The price charged would be less that the original value of the plane. You can prevent depreciation, I'm afraid
Regards
Highlander 222
There is a “not” missing 
But yeah, depreciation is an accounting term to keep your books balancd. You are not actually paying money for anything.
If the depreciation you find in a flight’s details has increased, it must mean you reduced the utilization of that aircraft
Depreciation is a non-cash expense.
But obviously you have to pay for using an aircraft, so you can’t avoid the leasing expense either.
The depreciation you see is probably for the seats in the aircraft, unless you bought the machine. Then it would be for both the aircraft and the cabin.