There is a say that 'the rich gets richer and the poor gets poorer'. Retailers are making more profit than the wholesalers and manufacturer during inflation. The poor always buy from retailers because they are the final consumers, while the rich buys in bulk this means they buy directly from the wholesalers.
Your analysis might be correct from some perspectives. But during inflation, the currency loses value and there is an increase in the price of goods and services. This would definitely lead to an increase in the cost of production. What the manufacturer simply does is increase the price of the goods and the wholesaler would push this extra cost to the retailer and finally, the consumers pay for all the extra cost. There might be some benefits of buying in bulk but the difference is sometimes not significant. Also buying in bulk also depends on your family size, house space, and electricity supply. It is also important to note that there are some essential goods that you cannot buy in large quantity because they are perishable or easily expires. Generally, inflation doesn't have any positive effect on any of the actors in the chain of distribution except the prices of goods and services are not adequately regulated and controlled by government agencies.
From calculation we can see that before the bakery shuts down,the wholesaler was making a profit of 14% but after the bakery reopened he makes a profit of 12%. The retailer was making a profit of 17% before shut down but after the bakery reopened, he makes a profit of 33% which is almost double of his profit.
Is it that as long as you are selling essential commodities, inflation doesn't affects your business instead you make more profit.
You just calculated only the selling price of the bread. You didn't consider that the value of the currency has been reduced because inflation reduces the buying power of people. Also, the wholesaler incurs other costs like transportation, shop rent, etc, that would have also increased. Yes, the wholesaler is making a profit but inflation has the tendency of making it lose value. Inflation affects all businesses regardless of the goods they sell because they have to buy raw materials and pay for other services.
The sizes of your pictures are too large. I think it would look better if you reduce them. You can consider reducing their size using this
[img width=350]https://i.imgur.com/onSwodf.jpeg[/img]