Need help on salary (pieces of money)

Dear All,

I need some help. My company pay salary by cash and we have total 70 person.

I want to create a automatic calculation on pieces of money needed but i don't know how to do that.

Ex:

RM1,532.85 for this month salary and i need an automatic calculation as below:

RM100.00 = 15
RM50.00 = 0
RM20.00 = 1
RM10.00 = 1
RM5.00 = 0
RM1.00 = 2
RM0.50 = 1
RM0.20 = 1
RM0.10 = 1
RM0.05 = 1


Thank you!