Unfortunately all of us in the aviation will have to increase prices due to the £/$ rate, this has put up the price of parts.
The other things beyond my control that have put up costs are EASA part M maintenance increasing the paperwork costs by about £700/ year per aircraft, insurance increases of about 15% due to the £/Euro rate and above inflation increases in business rates.
The big problem is that the government (local & national) refuse to keep their costs under control and keep thinking of ways to squeeze more money out of private business, it would seem that Multiflight are in the same boat as me and the rest of small to medium businesses in the UK