Skill Power Cost Calculation

Usage of a skill in the game usually costs a certain number of Skill Power Cost Points worth of Power. This is a value which is set in the skill's configuration. Skill Power Cost Points can be set for Cost Over Time, for channeled skills, and/or as a single Cost which is normally the case.
Skill Power Cost is derived from the Energy Progression. It's 16% of the progression's value (rounding occurs). For comparison: the Power stat on items is at 100% and Power in traits/effects is at 66.66%. Resulting values are rounded for display purposes and for reduction of complexity. Channeled Cost, as an exception, is always rounded down (floored).
The highest skill power cost points used is currently 30. Like for: Mearas-lore and Riding Companion: War Wolf (both Lore-master Mounted Skills)

Some point based values are given in the table below.

Skill Power Cost

Level	0.05 (channeled)	0.25	0.375	0.5	1.0	1.5	2.0	2.5	3.0	3.5	4.0	4.5	5.0	6.0	7.0	8.0	9.0	10.0	11.0	12.5	20.0	30.0
1	1	1	1	1	1	1	2	2	2	3	3	3	4	4	5	6	6	7	8	8	13	20
25	1	1	1	1	1	2	2	3	3	4	4	5	5	6	7	8	9	10	11	12	20	29
50	1	1	1	1	2	2	3	4	4	5	6	6	7	8	9	11	12	13	15	16	26	39
60	1	1	1	1	2	3	4	5	6	6	7	8	9	11	12	14	16	17	19	22	34	51
65	1	1	1	2	3	4	5	6	7	8	9	10	11	13	15	17	20	22	24	27	43	64
75	1	1	2	2	4	5	7	8	10	12	13	15	16	20	23	26	29	32	35	40	64	96
85	1	2	2	3	5	8	10	12	15	17	20	22	24	29	34	39	43	48	53	60	96	144
95	1	2	3	4	7	10	13	16	20	23	26	29	32	39	45	51	58	64	70	80	127	191
100	1	3	4	5	9	13	17	21	25	30	34	38	42	50	59	67	75	84	92	104	167	250
105	1	3	5	6	12	17	23	28	34	40	45	51	56	68	79	90	101	112	124	140	224	336
106	1	3	5	6	13	18	24	30	36	42	47	54	59	71	83	95	106	118	130	147	236	353
115	1	5	7	9	17	26	34	43	51	60	68	77	85	102	119	136	153	170	187	212	340	509
116	1	5	7	9	18	27	36	45	54	63	71	81	89	107	125	143	161	178	196	222	357	534
120	2	6	8	11	22	32	43	53	64	74	85	96	106	127	148	169	191	212	233	264	423	634
121	2	6	8	12	23	34	45	56	67	78	89	101	111	133	155	178	201	223	245	277	444	666
130	2	8	12	16	32	48	64	80	96	111	127	143	159	191	222	254	286	317	349	396	634	951
131	2	9	13	18	35	53	70	88	106	122	140	157	175	210	244	279	315	349	384	436	698	1,047
140	4	16	24	32	64	96	127	159	191	222	254	286	317	381	444	507	571	634	697	792	1,270	1,910
141	4	20	29	39	77	115	154	192	230	269	307	345	384	460	537	613	690	767	843	958	1,540	2,300
150	7	34	51	68	135	202	269	336	404	471	538	605	672	807	941	1,080	1,210	1,350	1,480	1,680	2,690	4,040

Note that various skill power reduction sources exists which influence directly these values. For example: Healing Skills Power Cost and Fellowship's Heart Healing (Imbued Legacy)

With the Lua plugin CalcStat, skill power cost can be calculated for each level by using the expression @SkillPowerCost#, with $N representing the number of Skill Power Cost Points.