Question

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
A company's stock price fluctuated over a period of four days. The table shows the change in stock price per day.

Day Change
1 increased by $3.50
2 decreased by $3.70
3 increased by $3.30
4 decreased by $3.40
The net change in the company’s stock price over the four days is

Answer 1

it wants the net change, so it doesn't really matter what the original stock price is
we can start with 0 to make the calculations easier

whenever it increases by an amount, add that amount
whenever it decreases by an amount, subtract that amount

1 increased by $3.50 ---> add 0 + 3.50
2 decreased by $3.70 ---> subtract 3.70 from the previous number
3 increased by $3.30 --> add 3.30 to the previous number
4 decreased by $3.40 --> subtract 3.40 from the previous number

final number should be your solution