Part $1$: Last year, Cayman Corporation had sales of $$6$ million, total variable costs of $$2$ million, and total fixed costs of $$1$ million. In addition, they paid $$480,000$ in interest to bondholders. Cayman has a $21\%$ marginal tax rate. If Cayman's sales increase $6\%,$ what should be the increase in operating income? SET YOUR CALCULATOR TO $4$ DECIMAL PLACES. ROUND TO $2$ DECIMAL PLACES AT THE END. DO NOT ENTER THE $\%$ SIGN. FOR EXAMPLE, IF YOUR ANSWER IS $9\mathrm{.}4567,$ ENTER IT AS $9\mathrm{.}46.$

Part $2$: Last year, Cayman Corporation had sales of $$26$ million, total variable costs of $$13$ million, and total fixed costs of $$5,000,000.$ In addition, they paid $$4$ million in interest to bondholders. Cayman has a marginal tax rate of $21$ percent. If Cayman's sales increase by $15\%,$ what should be the increase in operating income? SET YOUR CALCULATOR TO $4$ DECIMAL PLACES THEN ROUND TO $2$ DECIMAL PLACES AT THE END. DO NOT ENTER THE $\%$ SIGN. FOR EXAMPLE, IF YOUR ANSWER IS $12\mathrm{.}7125,$ ENTER IT AS $12\mathrm{.}71.$

Part $3$: Last year, Cayman Corporation had sales of $$6,537,060,$ total variable costs of $$2,853,692,$ and total fixed costs of $$1,517,603.$ In addition, they paid $$480,000$ in interest to bondholders. Cayman has a $21\%$ marginal tax rate. If Cayman's sales increase $9\%,$ what should be the increase in earnings per share? SET YOUR CALCULATOR TO $4$ DECIMAL PLACES. ROUND TO $2$ DECIMAL PLACES AT THE END. DO NOT ENTER THE $\%$ SIGN. FOR EXAMPLE, IF YOUR ANSWER IS $9\mathrm{.}4567,$ ENTER IT AS $9\mathrm{.}46.$