Hello and welcome along.
We all have guideline figures that we work with to give us an idea of what is fair and reasonable to allow against expenditure, however each case must be treated on its own merits. For example, if a guideline figure for food, or petrol, or anything else really was exceeded then it would be queried but as long as it was legitimate then it would be perfectly acceptable.
For more specific advice, especially if you are considering an IVA, then you should speak to an IP firm directly, and preferably 2 or 3, who will go through all these sorts of figures with you and then be in a better position to let you know what ALL your options are. It is a rare case indeed that doesn't have more than one option, so you should visit
www.iva.com and have a look around there, read reviews etc. Any reputable firm will be happy to have a look at things with you on a no pressure, no obligation basis.
Regards.
