Tuesday's Profit Was Smaller Than It Looked
On Tuesday, twins Ravi and Dee set up a lemonade stand. They sold 30 cups at $1 each. Ravi counted the coins in the cash box and shouted, "We made $30!" Dee shook her head. "That is our income, not our profit," she said.
Income is all the money that comes in. Profit is what is left after you subtract your costs. Costs are the money you had to spend to make the lemonade. Dee had kept a list. The lemons cost $8, the sugar cost $3, and the paper cups cost $4. Together, the costs came to $15.
Dee wrote a simple rule on a napkin: profit equals income minus costs. For Tuesday, that was $30 minus $15, which is $15. The twins had earned a profit of $15, which is half of what Ravi first thought.
Understanding profit helps the twins make smart choices. If they had spent $35 on supplies and sold only $30 of lemonade, their costs would be bigger than their income. That would be a loss, not a profit. To make more, they could raise the price, find cheaper lemons, or sell more cups. The next Saturday, they bought a larger bag of sugar that cost less for each cup, and their profit grew. Businesses of every size, from a lemonade stand to a huge company, keep track of both numbers.