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)

1 answer

at 60, N.A.
at 70, -20000/10=-2000
at 80, -100000/10=-10000
at 90, -80000/10=-8000
at 100, -260000/10=-26000