Parker's Furniture Repair has provided the following data concerning its costs:

For example, wages and salaries should be $$17,500$ plus $$8\mathrm{.}55$ per repair hour. The

company expected to work $3,200$ repair$-$hours in July, but actually worked $3,320$ repair$-$

hours. The company expects its sales to be $$34\mathrm{.}00$ per repair$-$hour.

Required:

Compute the company's activity variances for July.