How Is Inflation 6-7% When Vegetables Shot Up 50-100%?

Have you ever seen the memes comparing carrots to gold, or found yourself swapping recipes to avoid beans when prices spike?

You might hear on the news that Sri Lanka's headline inflation is sitting comfortably at 6-7%, but a trip to the Sunday pola tells a completely different story. Half the stall is up 50%. Some of it has doubled.

Here is why that happens, and how the math actually works.

The Supply Crunch

Vegetable prices are notoriously volatile. Non-seasonal heavy rains in Nuwara Eliya, sudden spikes in transport costs, or supply chain bottlenecks can wipe out crops overnight. This creates a massive mismatch between demand and supply, causing the prices of everyday items to skyrocket.

The "Shopping Basket" Math

To understand the gap between your grocery bill and the evening news, you have to look at how inflation is calculated using the Colombo Consumer Price Index (CCPI).

Think of the CCPI as a giant, standardised shopping basket representing what an average urban household buys. It contains over 400 items, from rent and electricity to school fees, transport, and food. Each item is assigned a "weight" based on how much of an average consumer's budget goes toward it.

Here is where the vegetable illusion happens:

• The entire "Food and Non-Alcoholic Beverages" category makes up about 26.2% of the CCPI basket.
• Vegetables are just a small sub-slice of that food category.
• A single vegetable, like carrots or big onions, makes up a tiny fraction of a percent of the total index.

A Simple Example

Let's look at how a massive price jump affects a real household budget.

Assume a family earns Rs. 150,000 a month. Just like the CCPI basket, they spread this money across housing, transport, education, and food.

Even in the worst case, where the price doubles, their total spend on carrots goes up by Rs. 900.

So while carrots got 100% more expensive, this family's total monthly outgoings went up by 0.6%.

Now stretch that across the whole vegetable rack. Say the family spends Rs. 7,500 a month on all their vegetables put together. If every single one of them doubled in the same month, that is Rs. 7,500 extra, a 5% increase on their total spending.

Painful, and very visible at the pola. But their rent didn't move. Their electricity bill didn't move. School fees, the bus fare, the phone bill, the lease instalment: none of it moved. And those items take up far more of the basket than vegetables ever will.

See it for yourself: Use our free Inflation Calculator to see what a given inflation rate does to your purchasing power over the years.

The Bottom Line

Reported inflation measures the general cost of living across the board. When you wonder how national inflation is 6-7% while vegetables went up 50-100%, it is because the impact of any single item is strictly limited by how much of our total budget it actually consumes.

More importantly, the CCPI is just a national average. If you spend a larger percentage of your income on food and transport than the "average" basket assumes, your personal inflation rate is much higher than what is reported on the news.

This is why national averages can never replace the clarity of tracking your own real-world expenses.

Find Your Own Inflation Rate

You don't need an index to work this out. You need your own numbers.

Kiwi Money reads your bank and card alerts and sorts your spending into categories automatically, so you can look back at what groceries and transport actually cost you three months ago versus today. That comparison is your personal inflation rate, and it is the only one that decides whether your salary is keeping up.

Download Kiwi Money and stop guessing at the national average.