The third column will let you know your percentual rank. If you percent rank is less than 20% then you are in your way to get an A-, A or A+ in the class.

Note, if you see several rows corresponding to your grade, just take the first one (the one with best rank).

score	rank	% rank
98	1	1
96	2	1
94	3	2
92	4	3
92	5	3
90	6	4
90	7	4
90	8	5
90	9	6
88	10	6
88	11	7
88	12	8
88	13	8
88	14	9
88	15	9
88	16	10
86	17	11
86	18	11
86	19	12
86	20	13
86	21	13
86	22	14
84	23	14
84	24	15
84	25	16
84	26	16
84	27	17
82	28	18
82	29	18
82	30	19
80	31	19
80	32	20
80	33	21
80	34	21
80	35	22
80	36	23
80	37	23
80	38	24
80	39	25
78	40	25
78	41	26
78	42	26
78	43	27
78	44	28
78	45	28
78	46	29
78	47	30
78	48	30
78	49	31
78	50	31
76	51	32
76	52	33
76	53	33
76	54	34
76	55	35
76	56	35
76	57	36
76	58	36
76	59	37
76	60	38
74	61	38
74	62	39
74	63	40
74	64	40
74	65	41
74	66	42
74	67	42
74	68	43
74	69	43
74	70	44
74	71	45
74	72	45
72	73	46
72	74	47
72	75	47
72	76	48
72	77	48
72	78	49
72	79	50
72	80	50
72	81	51
72	82	52
72	83	52
72	84	53
72	85	53
72	86	54
72	87	55
70	88	55
70	89	56
70	90	57
70	91	57
70	92	58
70	93	58
70	94	59
70	95	60
70	96	60
70	97	61
68	98	62
68	99	62
68	100	63
68	101	64
68	102	64
68	103	65
66	104	65
66	105	66
66	106	67
66	107	67
66	108	68
66	109	69
66	110	69
66	111	70
66	112	70
66	113	71
66	114	72
64	115	72
64	116	73
64	117	74
64	118	74
64	119	75
64	120	75
64	121	76
64	122	77
64	123	77
64	124	78
62	125	79
62	126	79
62	127	80
62	128	81
62	129	81
60	130	82
60	131	82
58	132	83
58	133	84
58	134	84
58	135	85
58	136	86
58	137	86
56	138	87
56	139	87
56	140	88
54	141	89
54	142	89
54	143	90
54	144	91
54	145	91
52	146	92
52	147	92
50	148	93
50	149	94
48	150	94
48	151	95
48	152	96
48	153	96
46	154	97
46	155	97
44	156	98
40	157	99
40	158	99
38	159	100