Did I get this right?

Issa's Revenue Question (Formula): Suppose that output, Q, is related to the revenue received for selling units of it by the formula: TR:=200*Q-5Q^2. (How do i make a) table of Q, TR, & Marginal Revenue for Q=0 to 100 by 5's

Q	TR	Marginal Revenue
0	0	0
5	875	175
10	1500	125
15	1875	75
20	2000	25
25	1875	-25
30	1500	-75
35	875	-125
40	0	-175
45	-1125	-225
50	-2500	-275
55	-4125	-325
60	-6000	-375
65	-8125	-425
70	-10500	-475
75	-13125	-525
80	-16000	-575
85	-19125	-625
90	-22500	-675
95	-26125	-725
100	-30000	-775