Answer: 15.89%
Explanation:
Since no discounts were taken, this company made your job a whole lot easier because if we are for instance assuming a 365 day year then you simply take the base period of payments which is 58 days in this scenario and divide by 365.
So it would come out like,
= 58/365
= 15.89%
If you need any clarification just drop a comment. Cheers.
