The fixed and variable costs for three potential manufacturing plant sites for a rattan chair weaver are shown: Variable Cost per Unit $11.00 $7.00 $5.00 Site Fixed Cost Per Year $800 $1,100 $2,200 3 a) After rounding to the nearest whole number, site 1 is best below units. After rounding to the nearest whole number, site 2 is best between After rounding to the nearest whole number, site 3 is best above 550 b) If the demand is 540 units, then the best location for the potentia units 75 ng plant is