Percents. Means “per 100”. Percents can be written as fractions by placing the number over 100 and simplifying.
Percents. Percents can be written as decimals (1) moving the
decimal point 2 places to the left, and (2) deleting the percent sign.
X*10%=15
X=15/10% = 15/0.10=150
Percent of change
Percentage change between two numbers A & B can be calculated
as:
(B-A)/A * 100
For example, if a game price increases in value from $10 to $12
the percentage increase is:
(12-10)/10 * 100 = 2/10 *100 = 0.2*100 = 20 percent
Alternatively, if a game price decreases in value from $10 to $9 the
percentage decrease is:
(10-9)/10 * 100 = 0.1*100 = 10 percent
Convert Fractions, Decimals, Percents
Move the decimal point twice to the right
Move the decimal point twice to the left,
delete the percent sign
Write down the decimal divided by 1
Multiply its numerator and denominator
by the same number (10, 100, 1000, ..)
by the same number (10, 100, 1000, ..)
Simplify if necessary
To convert a decimal to a percent, multiply the decimal by 100,
then add on the % symbol.
then add on the % symbol.
Percents
Convert Decimals Percents Fractions
Convert Fractions Decimals Percents
Converting Fractions Decimals And Percents
Ratios and Proportions
Interest
Interest on Interest