Forte manufactures violin bows. Its static budget for 2020, based on expected sales of 500 bows for $2,000 each, assumes the following: 40 direct labour hours per bow at a cost of $30 per direct labour hour. 1.5 staves of wood per bow, at a cost of $120 per stave. Forte's 2020 actual results were as follows: Forte sold 800 bows for total revenues of $1,250,000 Forte used 32,800 direct labour hours and 880 staves of wood Direct labour costs amounted to $918,400. Direct material costs amounted to $114,400 Actual fixed costs were $120,000, $5,000 lower than the amount assumed in the static budget. Blank 1: Determine the 2020 budgeted operating income. Blank 2: Determine the 2020 operating income static budget variance. Blank 3: Determine the 2020 operating income per the flexible budget. Blank 4: Determine the 2020 flexible budget variance for revenue. Blank 5: Determine the 2020 sales-volume variance. Blank 6: Determine the 2020 direct labour efficiency variance. Blank 7: Determine the 2020 direct materials rate variance