Answer: -0.05
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Explanation:
On day 56, the amount of money brought in was 2.95 million.
Then on day 112, the money earned was 0.279 million
We'll subtract those two dollar figures to get
0.279 - 2.95 = -2.671
The negative result is to indicate a decrease. So the studio has missed out on about 2.671 million dollars.
This value is then divided by the difference in the number of days (112-56 = 56), so we get -2.671/56 = -0.047696 which is approximate.
Rounding to two decimal places leads to the final answer -0.05
The amount earned has dropped by about 0.05 million dollars per day, or 50 thousand dollars per day. This is the amount of money they are missing out on as less people go to see the movie. This figure is approximate because we're talking about the average rate of change over a certain period of time.
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This is what your steps could look like if you don't like the approach of the last section.
m = average rate of change
m = ( f(b) - f(a) )/(b - a)
m = ( f(112) - f(56) )/(112 - 56)
m = ( 0.279 - 2.95 )/( 112 - 56 )
m = (-2.671)/(56)
m = -0.047696
m = -0.05
