Pupzy Company units have a sales price of $$1,875\mathrm{.}00$ ?and a variable cost of $$562\mathrm{.}50.$ ?Fixed costs are $$550,000$ ?and Pupzy's tax rate is $40\%.$

$\backslash$table$[[$Question$,$Answer$],[$a$.$ ?What is Pupzy's contribution margin ratio? Note: Round your answer to $2$ ?decimals.,$],[\backslash$table$[[$b$.$ ?Pupzy wants after$-$tax net income of $$300,000.$ ?How much revenue must Pupzy generate in order to achieve$],[$this net income? Note: Round your answer to $2$ ?decimals.$]],],[\backslash$table$[[$c$.$ ?Pupzy has the opportunity to switch to a new, more efficient supplier. Doing so will decrease variable cost per$],[$unit by $15\%.$ ?However, the switch will also require an additional $$60,000$ ?in fixed costs. If Pupzy makes the switch,$],[$what is Pupzy's new contribution margin ratio? Note: Round your answer to $2$ ?decimals.$]],\%],[\backslash$table$[[$d$.$ ?If Pupzy makes the switch to the new supplier, how much revenue must Pupzy generate to generate $$300,000$