In $2022,$ Bramble Corp. sold $6000$ units at $$600$ each. Unit variable cost was $$450$ and fixed expenses totaled $$592200.$ The same unit variable cost and fixed expenses are expected for $2023.$ If Bramble cuts its unit selling price by $4\%,$ what is Bramble's break$-$even point in sales units for $2023?$

$3948$

$4113$

$4519$

$4700$