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. 2/11, net 55.

Cost of lost discount %

b. 2/17, net 45.

Cost of lost discount %

c. 4/13, net 65.

Cost of lost discount %

d. 3/15, net 180.

Cost of lost discount %