Given the following information calculate the Marginal Revenues. I am getting lost on the order because I know the formula is change in TR/change in Q.

Q Price TR
60 26,000 (60x26K) = 1,560,000
70 22,000 (1,540,000)
80 18,000 (1,440,000)
90 14,000 (1,260,000)
100 10,000 (1,000,000)

at 60, N.A.

at 70, -20000/10=-2000
at 80, -100000/10=-10000
at 90, -80000/10=-8000
at 100, -260000/10=-26000

To calculate Marginal Revenue (MR), you need to find the change in Total Revenue (TR) divided by the change in quantity (Q). Here's how you can calculate it step by step:

1. First, note down the initial quantity and total revenue values. In this case, the initial values are Q = 60 and TR = $1,560,000.
2. To find the change in TR, subtract the initial TR value from the next TR value. In this case, the next TR value is $1,540,000.
Change in TR = $1,540,000 - $1,560,000 = -$20,000.
Note: The negative sign indicates a decrease in revenue.
3. Next, find the change in quantity. Subtract the initial quantity (60) from the next quantity value. In this case, the next quantity is 70.
Change in Q = 70 - 60 = 10.
4. Now, you can calculate the Marginal Revenue (MR) using the formula:
MR = Change in TR / Change in Q.
MR = -$20,000 / 10 = -$2,000.

Repeat this process for the remaining data points to calculate the Marginal Revenue at those quantities.