If the last month account balance was $15,800. And we have 23.2% less of that this month. You should first, get how much is the 23.2% of $15.800 ( I did this: 15.800/100= 158 * 23.2 = 3,665.6. Then the 23.3% of 15,800 is 3,665.6. With that in mind, if we have that amount less this month, do this: 15,800 - 3,665.6 = 12,134.4.
Answer: The account balance for this month is $12,134.4
