How to add or subtract percentages. If your calculator does not have a percent key and you want to add a percentage to a number multiply that number by 1 plus. Also, other percentage and percent calculators that are often needed. Percentage Calculator see examples Add or Subtract a Percentage see examples. Calculate: tips, sales price, percent off, discounted price, price with sales tax, etc. Add or subtract a percentage. Percentage Examples provided. Indicator of progress A very common use of percentages is to increase or decrease a given amount by a percentage. Select a different box to be the answer box if needed. Curriculum related information is currently being reviewed and may be subject to change. Take the original number, times it by the percentage that you are looking for, then minus it, then press equal. What is the total cost of the item with sales tax. What percentage of the number 24 to the number ? Answers are rounded to 7 decimal places. Whenever you are using a calculator for percentage calculations, you should make sure to press the Clear C or All Clear AC button before starting. Answers are rounded to 7 decimal places. One number is 9 more than anther number and their sum is 15? His articles have appeared in online publications including PC World and IGN, where he specializes in mobile apps for both Android and iOS. The calculator will the proceed to calculate. Subtract that number from , Examples of calculations on the calculator percent, see below. The last result may appear surprising, if you expect division to produce a smaller result than the starting number. Question 2 In a class of 20 students, 12 of them have brown eyes. Your calculator will turn the number 4 into 0. Use tab to move to the next field. What is the cost of the item after using the coupon? Using calculators and spreadsheets focus on transferring these ideas to technology. Answers are rounded to 7 decimal places.