Substitute in the proportion:

Cross multiply:

To determine the number that is 85% of 560, convert the percentage to a decimal:

Then multiply:

The correct answer is 

To find a percentage of a whole, we will first write the percentage as a fraction.  We know that all percentages can be written as a number over 100.  So,

Now, we will multiply the fraction by the whole number.  We get

Now, we can simplify/multiply.  

We write 150 as a fraction over 1.

We can cancel out the zero in 150 and the zero in 100.  

We can cancel out the zero in 30 and the zero in 10.

Now, we can multiply.  

Therefore,  of  is .

First, find  of :

Then, subtract this value from the whole:

To find a percentage of a whole, we will multiply the percentage by the whole number.  So,

 of 

can be written as

We know that a percentage can be written as a fraction over 100.  So, 

Now, we can solve.  

We can cancel out the zero in 30 and the zero in 100.

We can cancel out the zero in 10 and the zero in 270.

Now, we multiply.

Therefore,  of  is .

 of a number is equivalent to

times the number. 

Therefore,   of 999 is equal to 

.

To find the percentage of a whole, we will multiply the percentage by the whole number.  So,

 of 

can be written as

Now, we know percentages can be written as a number of 100.  So,

Now, we can multiply.

We can cancel the zero in 40 and the zero in 100.  We get

We can cancel the zero in 10 and the zero in 240.  We get

Now, we multiply.

To find a percentage of a whole number, we will multiply the percentage by the whole number.  

So, given

 of 

we will multiply.  We get

Now, we know a percent is a number of 100.  So,

and we can write  in fraction form.  We get

Now we multiply.  To make things easier, we can simplify before we multiply.  We can cancel out the zero in  and the zero in .  So,

We can also cancel the zero in  and the zero in .  So,

Now, we multiply straight across.

Therefore,  of  is .

To find a percentage of a whole, we will simply multiply the percentage by the whole number.  So, in the problem

 of 

we will multiply.  We get

We know that a percentage is equal to the number over 100, so we can write it like

To multiply, we will write  in fraction form.  We get

Now, to make the multiplication easier, we will simplify beforehand.  The 2 zeros in 100 can cancel the two zeros in 500.  So,

Now, we can multiply.

To find a

ercentage of a whole, we will multiply the percentage by the whole number.

So, in the problem 

 of 

we can write it as

We know that a percentage can be written as the number over 100, so we can write it as

We will now multiply.  To multiply, we will write 300 in fraction form.  We get

Before we multiply, we can simplify to make things easier.  The zeros in 100 can cancel out he zeros in 300.  So,

Now, we can easily multiply straight across.  We get

Therefore,  of  is .