Okay, this isn’t a homework question I randomly came up with it but I don’t know how I should calculate it. So say someone has 108 billion dollars, and they buy something that’s 20 million dollars . What percent of the 108 billion did they spend?

If you know how many ending zeros are in 108 billion (108,000,000,000 - nine zeros) and in 20 million (20,000,000 - seven zeros) then you can remove the amount of zeros that both numbers share -this case, both share 7 ending zeros. 10,800 and 2.

Now just divide: 2/10800 = 0.00018518518

You can test out this theory by trying the original numbers and then this. You will get the same result.

You can put it down to the .00000 whatever it calculates to, also id like to know how you got that so then I understand that lol I really don’t know how this came to my head, I even asked my mom but she didn’t know how to calculate it so ?

Thanks Pat, have a good day

To calculate the percentage someone spent out of a given amount, you can follow these steps:

Step 1: Determine the amount spent:

Given that the person spent 20 million dollars.

Step 2: Calculate the percentage spent:

To calculate the percentage, divide the amount spent by the total amount and multiply by 100.

Percentage spent = (Amount spent / Total amount) x 100

In this case, the total amount is 108 billion dollars. However, we need to convert this into the same unit as the amount spent, which is million dollars.

108 billion dollars = 108,000 million dollars

Now we can calculate the percentage:

Percentage spent = (20 million dollars / 108,000 million dollars) x 100

Step 3: Simplify the calculation:

To simplify the calculation, we can cancel out the common factor of million:

Percentage spent = (20 / 108,000) x 100

Step 4: Calculate the percentage spent:

Percentage spent = (0.000185185) x 100

Percentage spent ≈ 0.0185%

So, the person spent approximately 0.0185% of the 108 billion dollars.