That would of course be 0.13 lbs of pure fat per day. 0.13 lbs of subcutaneous fat equates to approximately 520 calories of food or in a balanced diet would equal around 3 times 0.13 lbs or more than a 1/3 of a pound of actual food. This would equate to 4-5 slices of bread or a rather large bowl of porridge.

520 calories also equates to around 1 hr of moderate exercise in terms of calories expended.

To lose the weight I would firstly take a weekly diary of exactly what you are eating and spreadsheet it into days versus meals versus calories consumed. An analysis will give you some surprising results. i.e. alcohol consumption will most likely be a major offending entry in the spreadsheet.

If your current lifestyle has mean't that you have gained 40lbs in the last year then the difference in cutting out those additional calories could well be 1000 calories or nearly 2/3 of lb of food per day or to put it another way 1 hrs of moderate exercise per day combined with 1/3 lb less food per day (actual weight of food in a balanced diet).

1000 calories per day difference reduction to the current intake could be very tough and sap the willpower. The only way I can think of to achieve this difference would be to cycle 20-40 miles per day and become a vegetarian or Lacto-ovo vegetarian as keeping up a demanding diet for 9 months will most likely end in failure.

BTW you will never achieve the linear reduction in weight loss, you make have to rethink the line shape in your on-line spreadsheet.