Table $4-14$

The table below shows the quantities demanded of milk per month by four families at various prices.

$\backslash$table$[[$Price of Gallon of Milk,The Berman Family,The Johnson Family,The Harris Family,The Patel Family$],[$$$3\mathrm{.}00,9,15,12,14],[$$$4\mathrm{.}00,8,12,10,10],[$$$5\mathrm{.}00,7,9,8,6]]$

Refer to Table $4-14.$ If the four families listed are the only demanders in this market and the price of a gallon of milk increases from $$4\mathrm{.}00$ to $$5\mathrm{.}00,$ what is the change in the market quantity demanded?

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