Base Respect

Base respect is determined by the level of your target. You'll earn more respect from defeating higher levels.

Base Respect = (Ln(x) + 1.0)/4.0

Where LN is Natural Log, (Log to the base of e) and x the target's level. Seems to be rounded to 2 decimal places for accuracy.

Here's the base respect of all levels

Level	Base Respect	Level	Base Respect	Level	Base Respect	Level	Base Respect
Lv 1	0.25	Lv 2	0.42	Lv 3	0.52	Lv 4	0.60
Lv 5	0.65	Lv 6	0.70	Lv 7	0.74	Lv 8	0.77
Lv 9	0.80	Lv 10	0.83	Lv 11	0.85	Lv 12	0.87
Lv 13	0.89	Lv 14	0.91	Lv 15	0.93	Lv 16	0.94
Lv 17	0.96	Lv 18	0.97	Lv 19	0.99	Lv 20	1.00
Lv 21	1.01	Lv 22	1.02	Lv 23	1.03	Lv 24	1.04
Lv 25	1.05	Lv 26	1.06	Lv 27	1.07	Lv 28	1.08
Lv 29	1.09	Lv 30	1.10	Lv 31	1.11	Lv 32	1.12
Lv 33	1.12	Lv 34	1.13	Lv 35	1.14	Lv 36	1.15
Lv 37	1.15	Lv 38	1.16	Lv 39	1.17	Lv 40	1.17
Lv 41	1.18	Lv 42	1.18	Lv 43	1.19	Lv 44	1.20
Lv 45	1.20	Lv 46	1.21	Lv 47	1.21	Lv 48	1.22
Lv 49	1.22	Lv 50	1.23	Lv 51	1.23	Lv 52	1.24
Lv 53	1.24	Lv 54	1.25	Lv 55	1.25	Lv 56	1.26
Lv 57	1.26	Lv 58	1.27	Lv 59	1.27	Lv 60	1.27
Lv 61	1.28	Lv 62	1.28	Lv 63	1.29	Lv 64	1.29
Lv 65	1.29	Lv 66	1.30	Lv 67	1.30	Lv 68	1.30
Lv 69	1.31	Lv 70	1.31	Lv 71	1.32	Lv 72	1.32
Lv 73	1.32	Lv 74	1.33	Lv 75	1.33	Lv 76	1.33
Lv 77	1.34	Lv 78	1.34	Lv 79	1.34	Lv 80	1.35
Lv 81	1.35	Lv 82	1.35	Lv 83	1.35	Lv 84	1.36
Lv 85	1.36	Lv 86	1.36	Lv 87	1.37	Lv 88	1.37
Lv 89	1.37	Lv 90	1.37	Lv 91	1.38	Lv 92	1.38
Lv 93	1.38	Lv 94	1.39	Lv 95	1.39	Lv 96	1.39
Lv 97	1.39	Lv 98	1.40	Lv 99	1.40	Lv 100	1.40

There you go.