I'll show you two ways of doing this.
In both ways, keep in mind that to find a percent of a number, just change the percent to a decimal (move the decimal point two places to the left) and multiply by the number.
For example, to find 80% of 200, first change 80% into the decimal 0.8.
Now multiply 0.8 * 200 = 160. 80% of 200 is 160.
Method 1:
The original price of the item is $230.
The discount is 25%.
Let's find 25% of $230.
25% of $230 = 0.25 * $230 = $57.50
The discount amount is $57.50.
Now we subtract the amount of the discount from the original cost.
Sale price = $230 - $57.50 = $172.50
Method 2.
The original price is $230.
That means that $230 is 100% of the price since 100% of a thing means the entire thing.
Since the discount is 25% of the price, we subtract 25% from 100%, 100% - 25% = 75%.
The sale price is 75% of the original price.
Now we find 75% of $230.
75% of $230 = 0.75 * $230 = $172.50
As you can see, both methods give you the same answer.$172.50.
