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Calculate a percentage increase by subtracting the old value from the new one, dividing the difference by the old value and then multiplying the quotient by 100. You need the new and old value. More »

www.reference.com Math Fractions & Percentages

To find a percentage increase, divide the difference between the new and old value by the old value, explains TutorVista.com. The result is then multiplied by 100 to give the percentage. More »

www.reference.com Business & Finance Financial Calculations

To calculate CPI rent increases, determine the applicable CPI index and the date the adjust occurs, then calculate the percentage of CPI increase on that date and multiply it by the amount of the rent. Some leases have a... More »

www.reference.com Business & Finance Financial Calculations
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To add a percentage to a number, change the percentage to a decimal value, and add one to the value. Multiply the number by the result. More »

www.reference.com Math Fractions & Percentages

The percentage of a number is found by multiplying the percent value by the base to get the percent amount, according to the Monterey Institute of Technology and Education. The base is the whole number and the percentage... More »

www.reference.com Math Fractions & Percentages

To calculate the percentage of error, subtract the experimental value from the exact value, divide the difference by the exact value and multiply the final answer by 100 percent. You need to know the experimental value a... More »

www.reference.com Math Fractions & Percentages

The percent increase in value is determined by finding the difference between the new value and the previous one. Divide the increase you find by the original value and multiply it by 100 to express it as a percentage. More »

www.reference.com Math Fractions & Percentages