Assignment Covering Chapter $1($i$)$

Anthony began the year with $$96,400$ ?already invested in his Snow $\text{'}$n Ice retail store. He withdrew $$14,200$ ?on March $1$ ?and another $$21,800$ ?on April $1.$ ?On August $1,$ ?he invested $$23,700,$ ?and on November $1,$ ?he contributed another $$19,300.$

What was his average cumulative investment during the year? $($Assume that each month has the same length. Round your answer to $2$ ?decimal places.$)$

Average investment during the year

$