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Practice of Farm Management and Marketing

Learn by doing a small farm project: pick a product, make a budget with fixed and variable costs, find the break-even quantity = fixed cost ÷ (price − unit cost), keep records, then write a short report.

🎬 Step-by-step story

  1. Our project is a small vegetable stall. These are the two axes: kilos sold (across) and money (up).
  2. The grey line is the fixed cost: 600. Rent of the stall and tools must be paid even if we sell nothing.
  3. The red line is the total cost. It starts at 600 and rises by 12 for every kilo (seeds, water, packing). 12 is the variable cost per kilo.
  4. The green line is income: price 20 per kilo times kilos sold. It starts at zero and climbs faster than the red line.
  5. The yellow dot is the break-even point: income equals cost at 75 kg. Below it is loss, above it is profit.
  6. Free play: change the price and the kilos sold. Watch the break-even point move and read the profit below.

Tip: drag the 3D scene to turn it. Use two fingers to zoom.

🤔 Common doubts, cleared

Why does money start above zero for cost?

Fixed cost must be paid before selling anything.

Why does the red line rise?

Every extra kilo needs seeds, water and packing.

Why does green cross red?

Each kilo earns 20 but costs 12, so green gains 8 per kilo on red.

What if price is only 14?

Break-even is 600 ÷ 2 = 300 kg. Move the price slider to 14.

Choose and plan a small farm project

A good first project is small, quick and safe: salad leaves in pots, a vegetable stall, egg sales, or a seed-saving box. Pick one using three tests: Do we have the skill? Can we get the land, water and tools? Will someone buy it?

Then write a one-page plan: goal, who does what, dates, budget and the place of sale (use the Plan-Do-Check cycle).

Budget: fixed and variable cost

Fixed cost stays the same whatever you sell: stall rent, tools, a licence. Variable cost grows with each kilo: seeds, water, packing.

Total cost = fixed cost + variable cost per kilo × kilos.

Example: fixed 600; variable 12 per kilo. For 100 kg total cost = 600 + 12 × 100 = 1800.

Break-even point

The break-even quantity is where income equals total cost.

Break-even kg = fixed cost ÷ (price − variable cost per kg). Here 600 ÷ (20 − 12) = 75 kg. Below 75 kg we lose; above we profit. A higher price or lower unit cost makes break-even come sooner.

Always ask: can we really sell that many kilos? If not, the project needs a change.

Records and the project report

Keep a daily record: date, work done, money spent, kilos sold, money received, and comments. Take photos.

At the end write a short report: 1) goal, 2) plan and budget, 3) what happened (table of income and costs), 4) profit or loss, 5) what we learned and what we will change. Add a simple bar chart. Share it with your teacher or group.

Key formulas and definitions

Worked examples

1. Fixed cost 600, variable 12 per kg. Total cost for 50 kg?

600 + 12 × 50 = 600 + 600 = 1200.

2. Price 20. Find break-even kg.

600 ÷ (20 − 12) = 600 ÷ 8 = 75 kg.

3. Sell 100 kg at 20. Profit?

Income 2000. Cost 600 + 1200 = 1800. Profit 200.

4. Price rises to 24. New break-even?

600 ÷ (24 − 12) = 600 ÷ 12 = 50 kg. Break-even comes sooner.

5. Price 15, but fixed cost cut to 300. Break-even?

300 ÷ (15 − 12) = 300 ÷ 3 = 100 kg.

Common mistakes

Practice quiz

1. Fixed cost is:
2. At break-even:
3. Fixed 600, price 20, unit cost 12. Break-even kg:
4. A higher price makes break-even:
5. A project report must have:

Practice: answer these yourself

Type or choose your answer, then press Check. Use a hint if you are stuck; the full solution appears after you answer.

Frequently asked questions

What is the break-even point?

The quantity where income equals total cost: no profit, no loss.

What is the difference between fixed and variable cost?

Fixed stays the same; variable grows with quantity.

What should a farm project report include?

Goal, plan, income-cost table, profit or loss, and lessons.

Where this is taught

Japan高校(専門学科)1〜3年Farm Management

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