An electronics store usually sells 18 remote control devices per week at a retail price of $12.49. This week the manager put the remotes on sale for a markdown of 20%, and sold 25 of them. How much more revenue was earned this week by having the sale?
25*12.49(1-.20) - 18*12.49 = 24.98
To calculate the revenue earned this week with the sale, we need to find the difference between the revenue from selling 25 remotes at the sale price and the revenue from selling 18 remotes at the original price.
First, let's calculate the original revenue:
Original revenue = Number of remotes sold at the original price × Retail price
Original revenue = 18 × $12.49
Next, let's calculate the revenue from the sale:
Sale revenue = Number of remotes sold at the sale price × Sale price
Sale revenue = 25 × (Retail price - (20% of Retail price))
We know that the markdown is 20%, which means the sale price is 80% of the retail price.
Sale price = 80% of Retail price = 0.8 × Retail price
Now we can substitute the values:
Sale revenue = 25 × (0.8 × $12.49)
Finally, let's calculate the difference in revenue:
Difference in revenue = Sale revenue - Original revenue
By plugging in the values, we can find the answer.