Concept of Profit and Loss

We will understand the concept of profit and loss in daily life. Nowadays, the producer and consumer are rarely directly involved. In most cases a middleman buys from the producer and sells the product to the consumer and the middle-man are either wholeseller or retailer. The wholeseller buys entire things from the producer and sells it to different smaller businessman who in turn sells it in retail to the consumers.

Most of the businessmen make their money by buying and selling products. If the selling price of a product exceeds its cost price or production price, then a profit is made. If the selling price of a product is less than its cost price, then a loss is incurred.

Hence, profit = selling - cost price

And loss = cost price - selling price

(i) in case of profit, selling price > cost price and in case of loss, selling price< cost price.

(ii) profit or loss is usually calculated on cost price.

Consider the example:

Suppose a book seller buys books for $800 and sells it at $900 and cycle seller makes a cycle at $200 and sells it for $300.

Here, profit from books = $900 - $800 = $100

and profit from cycle = $200 - $300 = $100

Therefore, both the profits are same i.e., $100

We observe that the book seller had to invest $800 to gain $100 and the cycle seller invests only $200 to gain $100. So from the businessman point of view, both transactions cannot be the same.

As profit and loss are business related matters, so profit and loss has to be judged from capital invested in business.

If the two profits are judged by money investment, we observe,

In case of book = profit : investment

                       = 100 : 800  

                       = 1 : 8

                       = 1/8         

In case of cycle = profit : investment

                       = 100 : 200 

                       = 1 : 2

                       = 1/2

As 1/2 > 1/8, then the cycle seller has made more profit than the book seller.

If we express this in percentage,

Percentage of profit of book seller = (1/8 × 100)% = 12.5%

 Percentage of profit of cycle seller = (1/2 × 100)% = 50%

Thus the cycle seller has made more profit percent than the book seller.

Therefore, we get the clear expression about the concept of profit and loss.

7th Grade Math Problems

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