Calculate Marginal Revenue when output rises from 420 to 430 pounds. Total Output (Q) Price per Pound Total Revenue Marginal Revenue (Pounds) ($1.75) (1) (2) (3) (4) O $1.75 $0.00 100 $1.75 $175.00 250 $1.75 $437.50 320 $1.75 $560.00 380 $1.75 $665.00 120 $1.75 $735.00 430 $1.75 $752.50 390 $1.75 $682.50 $100 $175 $2.00 $1.50