AAT Practice And Green Light Errors

Is fixed cost
Decrease per unit as selling price increases.
Or
Decrease per unit as volume increases?
Decrease per unit as VOLUME increases
Is stepped cost :
Variable for a certain volume range only
Or
Fixed for a certain volume range only
Fixed for a certain volume range only.
Another name for Stepped cost?
Stepped FIXED cost
Most important investment criteria?
NPV
When being asked what variance caused the biggest change in profit for example what not to forget?
That ‘sales revenue’ variance is still a variance ... don’t make the mistake thinking only costs are variances. Sales rev variance may be due to something like ‘less trade discounts given’ for example.
Contribution per limiting factor
Work out contribution per unit and then divide that by the amount of limiting factor required to make it. Then rank the products by these contributions and make as many as can (limited by demand) in order of ranking
Contribution to sales ratio (CS ratio) - how to calculate?

(Also called the profit to volume ratio (PV ratio)
Contribution / selling price = CS ratio.
Can be either a decimal fraction or *100 to get a %

***Be careful not to do VarCosts/selling price !!!! ***
Margin of safety is:
Budgeted sales - breakeven / Budgeted sales
(Can be either number of units or £ or %)
Know how to work out number of units to get given profit
Just add desired £profit on to £breakeven then divide by C/unit.

This will give number of units ... can easily convert that into £sales rev.
Payback period based on ...
Undiscounted cash flows
Break even analysis also known as
Cost Volume Profit analysis (CVP)
Generally if a cost is variable it is also direct.
If a cost is fixed it is usually indirect
This would have pointed me in right direction for diesel fuel in a haulage company being direct (aat ass2)
Which gives higher profit figure and why (marginal absorption)
Absorption because it has a lower COS since closing inventory is higher.