please help with step by step solution

Claire Company produces Tablets and Books. Total overhead costs traditionally have been allocated on the basis of direct labor hours. After implementing activity-based costing, managers determined the following cost pools and cost drivers. They also decided that general costs should no longer be allocated to products.

Activity Pool	Department Costs	Cost Driver
Binding	$257,922	Number of units
Printing	794,052	Machine hours
Product design	196,236	Change orders
General	641,700	None
Total overhead costs	$1,889,910

Other information is as follows:

Tablets	Books
Units	62,900	20,000
Direct materials cost per unit	$2.86	$10.44
Direct labor cost per unit	$3.87	$8.12
Direct labor hours	25,400	16,000
Machine hours	125,000	120,000
Change orders	1,200	2,000

Calculate ABC rates. (Round answers to 2 decimal places, e.g. 15.25.)

ABC rates
Binding	$ 12.90/unit
Printing	$ 6.62/machine hour
Product design	$ 98.12/change order