The Kamienski Cleaning Brigade Company provides housecleaning services to its clients. The company uses an activity$-$based costing system for its overhead costs. The company has provided the following data from its activity$-$based costing system.

$\backslash$table$[[$Activity Cost Pool,Total Cost,Total Activity$],[$Cleaning$,$$$185,752,21,700$ hours$],[$Job support,$$171,532,6,100$ jobs$],[$Client support,$$15,124,760$ clients$],[$Other$,$$$240,000,$Not applicable$],[$Total$,$$$612,408,]]$

The "Other" activity cost pool consists of the costs of idle capacity and organization$-$sustaining costs. One particular cllent, the Whiddon family, requested $15$ jobs during the year that required a total of $60$ hours of housecleaning. For this service, the client was charged $$1,170.$

Required:

a$.$ Using the activity$-$based costing system, compute the customer margin for the Whiddon family. Round off all calculations to the nearest whole cent.

b$.$ Assume the company decides instead to use a traditional costing system in which ALL costs are allocated to customers on the basis of cleaning hours. Compute the margin for the Whiddon family?

Note: Round off all calculations to the nearest whole cent.