Compute the cost of not taking the following trade discounts: (Use 365 days in a year. Round the final answers to 2 decimal places.)

a. 2/13, net 50.

Cost of lost discount %

b. 2/20, net 50.

Cost of lost discount %

c. 3/18, net 65.

Cost of lost discount %

d. 3/18, net 150.

Cost of lost discount