I need an explanation of how to get the answers.

Sales price variance: favorable or unfavorable? How much is it? Sales volume variance: favorable or unfavorable? How much is it (assume that there is no variable overhead)? Materials price variance: favorable or unfavorable? How much is it? Materials quantity (efficiency) variance: favorable or unfavorable? How much is it? Labor price variance: favorable or unfavorable? How much is it? Labor quantity (efficiency) variance: favorable or unfavorable? How much is it