In order to solve this, we first need to convert the percentage into a decimal which can be done by dividing it by 100 like so
24.5 % 100 = 0.245
Now that we have the decimal form of the percentage we add a 1 to it and multiply that by $150 in order to get the total amount that is owed after two weeks .... without the 1 added it would only give us the amount of interest that needs to be paid.
$150 * 1.245 = $186.75
Therefore after two weeks you would need to pay a total of $186.75
