A day clinic has the following results:

CLINIC Budget Actual

Activity $-$ consultations $20003000$

Staff $$90,000$ $$120,000$ Plan $4$ WTE $>$ Actual $5$ WTE

Consumables $$60,000$ $$70,000$ Plan $2000$ units $>$ Actual $3500$ units

Please analyse the staff and consumables budget variances across the respective variances.

What is the staff activity variance?

What is the consumables price variance?

What is the consumables efficiency variance?