Calculate year month day between 2 dates assuming 365 days a year and 30 days a month

Hi, I need to calculate the year month day between 2 dates assuming 365 days a year and 30 days a month (i.e. ignore leap year, ignore the fact that certain months have 30 days while others have 31 days).

I have been using the data calculation formulas but couldn't tally with the end date reason being it automatically included the extra days and months with more days. 

My expected output, hope to seek some guidance here.