Generally, percentages refer to a ratio of some kind. If you had nine things out of ten things, that would be ninety percent. If you compared nine things to one thing, that would be nine hundred percent. If you had the decimal 0.09, meaning nine out of a hundred, that would be 9 percent.
9/100
9% means 9/100 ======simplest form
1/2
36%
90% = 9/10 = 0.9
9/100
9% means 9/100 ======simplest form
200% increase.
Multiply by 100 9%
1/2
It is a 25% decrease
36%
Change the ratio into a fraction and change the fraction into a percent. For example: 9:100 - Ratio 9/100 - Fraction 9% - Percent Example 2: 5:20 5/20 5/20 = 25/100 (You denominator *20* x *5* will equal 100) 25%
45% = 45/100 It can also be written as 9/20
9/20
Percentage change: 62.5% decrease.
To the nearest percentage, it is a 9% reduction.