What is meant by the term ‘principal budget factor’?
The principal budget factor limits the activity for the budget period. Normally this is the level of sales and therefore the sales budget is usually the first budget to be prepared – this then leads to the others. However, it could be (for example) a limit on the availability of raw materials that limits activity. In this case raw materials would be the principal budget factor, and this would be the first budget to be prepared.