Adrian Dantley has the most career points per game / usage percentage, with 0.95.

Interpreted as:

best ppg/usg% by a player NBA career

	NAME	PPG/USG%	PPG	USG%	GP	MPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Adrian Dantley A. Dantley	0.95	24.6	26.0	878	35.7	5.5	3.1	1.0	0.2	8.7	16.0	54.2	0.0	0.1	17.1	7.2	8.8	81.8	61.8	2.2	3.3	2.9	31,335	21,613	4,868	2,686	853	135	2,503	2,335
2	Larry Bird L. Bird	0.92	24.3	26.5	897	38.4	10.0	6.3	1.7	0.8	9.6	19.3	49.6	0.7	1.9	37.6	4.4	5.0	88.6	56.4	2.0	8.0	3.1	34,443	21,791	8,974	5,695	1,556	755	2,816	2,279
3	Michael Jordan M. Jordan	0.91	30.1	33.2	1,072	38.3	6.2	5.3	2.3	0.8	11.4	22.9	49.7	0.5	1.7	32.7	6.8	8.2	83.5	56.9	1.6	4.7	2.7	41,011	32,292	6,672	5,633	2,514	893	2,924	2,783	+1438
4	Kevin Durant K. Durant	0.91	27.2	30.0	1,123	36.7	7.0	4.4	1.0	1.1	9.4	18.7	50.2	2.0	5.0	39.0	6.5	7.4	88.2	62.0	0.7	6.3	3.2	41,236	30,571	7,828	4,908	1,173	1,273	3,553	2,137	+4732
5	Charles Barkley C. Barkley	0.9	22.1	24.7	1,073	36.7	11.7	3.9	1.5	0.8	7.9	14.5	54.1	0.5	1.9	26.6	5.9	8.1	73.5	61.2	4.0	7.7	3.1	39,330	23,757	12,546	4,215	1,648	888	3,376	3,287	+532
6	Magic Johnson M. Johnson	0.88	19.5	22.2	906	36.7	7.2	11.2	1.9	0.4	6.9	13.2	52.0	0.4	1.2	30.3	5.5	6.5	84.8	61.0	1.8	5.5	3.9	33,245	17,707	6,559	10,141	1,724	374	3,506	2,050
7	Kareem Abdul-Jabbar K. Abdul-Jabbar	0.87	21.3	24.3	929	33.5	8.4	3.1	0.8	2.3	8.8	15.3	57.0	0.0	0.0	5.6	3.7	5.0	74.6	60.5	2.1	6.3	2.7	31,097	19,749	7,806	2,920	763	2,095	2,527	2,670
8	Damian Lillard D. Lillard	0.87	25.1	28.9	900	36.2	4.3	6.7	1.0	0.3	8.1	18.4	43.9	3.1	8.4	37.1	5.8	6.5	89.9	59.0	0.6	3.7	2.8	32,612	22,598	3,845	6,069	874	267	2,541	1,708	+2415
9	Artis Gilmore A. Gilmore	0.87	17.0	19.6	827	32.4	9.8	1.9	0.5	1.9	6.2	10.3	60.9	0.0	0.0	7.7	4.5	6.3	71.9	65.3	2.8	7.0	2.8	26,808	14,052	8,091	1,578	426	1,544	2,347	2,720
10	George Gervin G. Gervin	0.87	26.5	30.7	709	33.6	4.4	2.8	1.2	0.8	10.3	20.3	50.8	0.1	0.5	29.7	5.8	6.8	84.5	56.8	1.5	3.0	3.0	23,831	18,813	3,153	1,976	836	566	2,137	2,045
11	Karl-Anthony Towns K. Towns	0.86	23.1	26.8	645	34.1	11.1	3.2	0.8	1.2	8.5	16.2	52.4	1.7	4.3	40.0	4.4	5.3	83.7	62.4	2.8	8.3	2.7	21,971	14,880	7,136	2,037	523	771	1,745	2,197	+1278
12	LeBron James L. James	0.86	27.0	31.4	1,562	37.8	7.5	7.4	1.5	0.7	9.9	19.6	50.6	1.6	4.7	34.9	5.5	7.5	73.7	59.0	1.2	6.4	3.5	59,042	42,184	11,731	11,584	2,345	1,150	5,471	2,781	+7389
13	Brad Daugherty B. Daugherty	0.86	19.0	22.1	548	36.5	9.5	3.7	0.8	0.7	7.0	13.1	53.2	0.0	0.0	14.3	5.0	6.7	74.7	59.0	2.2	7.3	2.8	20,029	10,389	5,227	2,028	422	397	1,511	1,466
14	Anthony Davis A. Davis	0.85	24.1	28.3	787	34.4	10.7	2.6	1.3	2.3	9.0	17.3	52.2	0.5	1.6	29.6	5.6	7.0	79.4	59.2	2.7	8.0	2.0	27,082	18,978	8,416	2,009	1,033	1,815	1,573	1,840	+929
15	Karl Malone K. Malone	0.85	25.0	29.3	1,476	37.2	10.1	3.6	1.4	0.8	9.2	17.8	51.6	0.1	0.2	27.4	6.6	8.9	74.2	57.7	2.4	7.7	3.1	54,852	36,928	14,968	5,248	2,085	1,145	4,524	4,578	+3010
16	Stephen Curry S. Curry	0.85	24.7	29.1	1,026	34.1	4.7	6.4	1.5	0.3	8.4	17.9	47.1	4.0	9.3	42.3	3.9	4.3	91.1	62.5	0.7	4.0	3.1	34,974	25,386	4,819	6,540	1,553	265	3,187	2,310	+6177
17	Shai Gilgeous-Alexander S. Gilgeous-Alexander	0.85	24.4	28.9	462	33.1	4.8	5.1	1.4	0.8	8.5	17.0	50.1	1.3	3.7	35.5	6.0	7.0	86.2	60.7	0.8	4.0	2.3	15,291	11,294	2,211	2,362	666	370	1,072	1,044	+1274
18	Reggie Miller R. Miller	0.84	18.2	21.6	1,389	34.3	3.0	3.0	1.1	0.2	5.9	12.6	47.1	1.8	4.7	39.5	4.5	5.1	88.8	61.4	0.6	2.4	1.7	47,619	25,279	4,182	4,141	1,505	299	2,409	2,730	+2015
19	Dan Issel D. Issel	0.84	20.2	24.0	639	31.0	7.8	2.5	0.9	0.6	7.5	14.8	50.5	0.0	0.2	25.3	5.2	6.6	79.7	57.2	2.3	5.5	2.0	19,835	12,894	5,011	1,627	607	367	1,281	1,776
20	Alex English A. English	0.84	22.3	26.5	1,133	33.0	5.6	3.8	0.9	0.7	9.3	18.3	50.7	0.0	0.1	21.7	3.7	4.5	83.3	55.0	2.4	3.2	2.5	37,415	25,303	6,370	4,326	1,050	815	2,821	2,949
21	Marques Johnson M. Johnson	0.84	20.1	23.9	691	34.3	7.0	3.6	1.3	0.8	8.3	16.0	51.8	0.0	0.2	15.2	3.5	4.7	73.9	55.6	2.6	4.3	2.4	23,694	13,892	4,817	2,502	888	525	1,627	1,766
22	Allen Iverson A. Iverson	0.84	26.7	31.8	914	41.1	3.7	6.2	2.2	0.2	9.3	21.8	42.5	1.2	3.7	31.3	7.0	8.9	78.0	51.8	0.8	2.9	3.6	37,584	24,368	3,394	5,624	1,983	164	3,262	1,777	+799
23	Kiki VanDeWeghe K. VanDeWeghe	0.84	19.7	23.6	810	30.3	3.4	2.1	0.6	0.3	7.6	14.4	52.5	0.3	0.7	36.8	4.3	4.9	87.2	59.4	1.1	2.3	1.6	24,521	15,980	2,785	1,668	468	243	1,310	1,560
24	Mikal Bridges M. Bridges	0.83	14.8	17.8	556	33.3	4.0	2.7	1.2	0.6	5.5	11.4	48.4	1.8	4.7	37.1	2.0	2.4	84.3	59.5	0.9	3.1	1.2	18,514	8,204	2,207	1,517	650	317	691	1,032	+829
25	Jayson Tatum J. Tatum	0.83	23.6	28.5	585	34.5	7.3	3.8	1.1	0.7	8.2	17.8	45.9	2.6	7.1	37.0	4.5	5.4	84.0	58.3	0.9	6.5	2.4	20,185	13,784	4,293	2,243	640	384	1,389	1,232	+3645