Fin $315$ Practice Problems $-$ Calculating the Dow

Charles Dow's stock market average first appeared in the Customer's Afternoon Letter on July $3,1884.$

Suppose that the $11$ stock prices for the companies in his market average were as follows on July $3,$

$1884$: $$15,$$$12,$$$30,$$$25,$$$14,$$$60,$$$48,$$$12,$$$35,$$$20,$$$30.$ Now, suppose that the company

selling for $$60$ had a $2$ for $1$ split. Find the new divisor for the Dow that becomes effective the next

day $($on July $4).$