Karla has spent $42 on food she bought milk, cheese, and meat. the milk cost half as much as the cheese and the meat cost four times as much as the cheese

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday