To calculate the percentage between two numbers, determine the type of percentage needed. Then, subtract one number from the other, and divide it based on the type of percentage. Finally, multiply the answer by 100 to find the percentage.
Know MoreThe percentage between two numbers is either a percentage change, error or difference. Change is used when comparing any two numbers, error is used when comparing an exact value to an estimated value, and difference is used to compare an old value to a new value. For example, if comparing the price of an item in two separate shops, percentage difference is used.
For percentage error and percentage change, use the absolute value of the answer when subtracting one value from the other. For example, if milk is $4.00 in one shop, but $5.50 in another, the difference is $1.50.
For percentage change, divide the answer by absolute value of the old value; for percentage error, divide the answer by the exact value. For the percentage difference, divide the answer by the average of the two values. Once the final answer is calculated, multiply it by 100 to get the answer in percent. The percent difference for the two milk prices is $1.50 / (($4.00 + $5.50) * 0.5) * 100 = 31.6 percent.
Two-digit numbers can be multiplied by lining up the ones value and the tens value and summing the vertical lines. If a two-digit number is multiplied by a one-digit number, then the ones value and the tens value are summed separately and the former is added after the latter.
Full Answer >The sum of two even numbers will always be even. The sum of two numbers refers to the result of adding them together.
Full Answer >Calculate the percentage difference of two numbers by dividing the difference of the numbers by their average. Multiply this answer by 100 to determine the percentage difference.
Full Answer >To find the least common multiple of two numbers, factor the two numbers, noting the frequency of the prime factors, and then multiply the most repeated factors together. Perform division to check your answer when complete.
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