# Practice assessment 2 - Task 8 (b) (ii)

Registered Posts: 11 New contributor 🐸
Hi All
If total cost per unit is £12.75 and selling price is £17 and the question is, how many units need to be sold to make a profit of 25%.
The answer is 25,217, but can anyone explain how they came to 25,217 units needing to be sold to get a 25% profit margin?
I see that they need to make £428,689 (£17 x 25,217 units) to cover costs and profit.
If 25% of this is profit (£107,172) and the remaining 75% is costs (£321,517 £12.75 x 25,217 units)
But how did they do the calculation to work this out?

• MAAT Posts: 474 Dedicated contributor 🌟 🐵 🌟
I'm assuming you have a fixed cost figure earlier in the question oir can caluculate one? If so the units needed would be the amount needed to get the targeted fixed costs per unit of 5.75. Guessing that's around £145,000 of fixed cost.
AAT Level 4, MAAT
ACCA in progress
F4- Passed Aug 2020
F5- Passed Dec 2020
F6- Passed Sep 2020
F7- Passed June 2021
F8 - Passed Sep 2021
F9 - Passed June 2021

SBL -
SBR - Passed Mar 22
ATX - Passed Dec 21
APM - Passed June 22
• Registered Posts: 11 New contributor 🐸
They have only given me the below, but the 25,217 x £12.75 total cost per unit covers the fixed costs and variable costs.

• Registered Posts: 11 New contributor 🐸
So I have found it, 65+45+35 = 145 fixed / £5.75 fixed costs per unit = 25,217 units.
must have been asleep! :-)
• MAAT Posts: 474 Dedicated contributor 🌟 🐵 🌟
It's probably one of the things you need to look for more in level 4 than in 2+3, the questions tend to have more cases where all the information is given before the 1st part instead of only the relevant information before the appropiate part.

Glad you found where it all fits together.
AAT Level 4, MAAT
ACCA in progress
F4- Passed Aug 2020
F5- Passed Dec 2020
F6- Passed Sep 2020
F7- Passed June 2021
F8 - Passed Sep 2021
F9 - Passed June 2021

SBL -
SBR - Passed Mar 22
ATX - Passed Dec 21
APM - Passed June 22
• Registered, AAT Student Posts: 4
Thank you for this discussion. I had the same issue until I read this.