This is the amount of points you get for eliminating different amounts of viruses in the same combo. I've gotten most values from videos of my own gameplay, some are from ああああ(遊び人)'s videos. (aaaa_playboy) The score for MED and HI is always twice and three times respectively that of the score for LOW.

Viruses LOW MED HI 01 100 200 300 02 300 600 900 03 700 1400 2100 04 1500 3000 4500 05 3100 6200 9300 06 6300 12600 18900 07 9500 19000 28500 08 12700 25400 38100 09 15900 31800 47700 10 19100 38200 57300 11 22300 44600 66900 12 23300 46600 69900 13 23600 47200 70800 14 49200 98400 147600 15 49300 98600 147900 16 49500 99000 148500 17 49900 99800 149700 18 75500 151000 226500 19 100700 201400 302100 20 125500 251000 376500 21 149900 299800 449700 22 174100 348200 522300 23 198200 396400 594600 24 222200 444400 666600 25 246300 492600 738900 26 270500 541000 811500 27 294900 589800 884700 28 319700 639400 959100 29 344900 689800 1034700 30 370500 741000 1111500 31 372600 745200 1117800 32 375000 750000 1125000 33 378200 756400 1134600 34 403800 807600 1211400 35 406000 812000 1218000 36 407400 814800 1222200 37 408700 817400 1226100 38 434300 868600 1302900 39 459700 919400 1379100 40 461400 922800 1384200 41 463200 926400 1389600 42 488800 977600 1466400 43 490900 981800 1472700 44 493300 986600 1479900 45 496500 993000 1489500 46 522100 1044200 1566300 47 524300 1048600 1572900 48 525700 1051400 1577100 49 527000 1054000 1581000 50 552600 1105200 1657800 51 578100 1156200 1734300 52 579800 1159600 1739400 53 581600 1163200 1744800 54 607200 1214400 1821600 55 610700 1221400 1832100 56 614300 1228600 1842900 57 617800 1235600 1853400 58 621500 1243000 1864500 59 625300 1250600 1875900 60 629200 1258400 1887600 62 637000 1274000 1911000 63 641100 1282200 1923300 64 645300 1290600 1935900 65 649400 1298800 1948200 66 653700 1307400 1961100 72 657400 1314800 1972200