How interests are calculated??
Let's say my bank balance is $100 debit at the beginning of the month, then it goes up to $500 in the middle of the month, then it goes down to $50 at the end of the month.
If interest is calculated at the end of the month at 1% per month
What is the interest?
Is it $50 X 0.01 = $0.5 (based on amount owning at the point of calculation)
Or is it $500 X 0.01 = $5 (based on the highest amount owning during in that period)
Or is it average amount owning during that period
Or is it something else??