To calculate the sale price of an item that is on sale for 75% off it's purchase price at $20 - we need to first convert 75% to it's decimal form. After we achieve this we need to multiply its decimal form by the price of the item ($20). Finally we need to subtract the value of 75% of $20 from $20.
Step 1) Determine the decimal value of 75%
- To convert from percentage to decimal we move the decimal two places to the left
- Original: 75.0 (the same as 75%)
- 1st Place: 7.50
- 2nd Place: .750
Step 2) Multiply the decimal form by the price of the item
- .750 x 20 = 15
Step 3) Subtract the value of 75% of $20 from $20
- $20 - 15 = $5.
So If you purchased an item valued at $20 and it was 75% off, you would pay only $5.
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25% off of 35 dollars = 75% of 35 dollars [ 100 - 25 = 75] = 35*75/100 = 26.25 dollars
75
25% off of 85 dollars = 75% [left] of 85 dollars = 85*75/100 = 63.75 dollars
$150 - $112.50(75%) = $37.50
$18.75 is 25% $75 - $18.75 = $56.25 To find a percent, divide your number by 100 (to get 1%) then multiply by how many percent you need (in your case 75, as you have taken 25 away from 100)