ake$$s Roof Repair has provided the following data concerning its costs:

Fixed Cost per Month Cost per Repair$-$Hour

Wages and salaries $ $20,800$ $ $15\mathrm{.}00$

Parts and supplies $ $7\mathrm{.}40$

Equipment depreciation $ $2,780$ $ $0\mathrm{.}30$

Truck operating expenses $ $5,720$ $ $1\mathrm{.}80$

Rent $ $4,690$

Administrative expenses $ $3,880$ $ $0\mathrm{.}70$

For example, wages and salaries should be $$20,800$ plus $$15\mathrm{.}00$ per repair$-$hour. The company expected to work $2,800$ repair$-$hours in May, but actually worked $2,700$ repair$-$hours. The company expects its sales to be $$50\mathrm{.}00$ per repair$-$hour.

Required:

Compute the company$$s activity variances for May.