582 calories is 12.8% of what calories.

582 calories is 12.8% of: 4546.875 calories

Explanation:

In mathematical terms, 12.8 % is written as: 0.128.

Now, we need to find a number X such that 582 divided by X renders 0.128 to guarantee that 582 is 12.8% of such number X.

Therefore we write the following proportion:

Now to solve for X in this equation, we multiply both sides of the equal sign by X, and then divide both sides by 0.128 in order to leave our X unknown isolated on the right hand side of the equal sign:

This means that 582 calories is 12.8& of 4546.875 calories