Last year, Cayman Corporation had sales of $7 million, total variable costs of $3 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 9.4567ENTER IT AS 9.46.