Yeah, the *100 is just to clarify that it is in percent, I think.
Here's what I gathered one lonely day:
Soldat 1.3.1:
DE: 176*190 = 33 440 * 2.6 = 86 944 *2 = 115.92%/second
Mp5: 189*104 = 19 656 * 10 = 196 560 = 131.04%/second
Ak: 113*240 = 27 120 * 5.4 = 146 448 = 97.6%/second
AUG: 73*260 = 18 980 * 8.5 = 161 330 = 107.5%/second
Spas: 122*137 = 16 714 * 1.7 = 28 413 *6 = 113.4%/second
R77: 250*330 = 82 500 * 1.5 = 123 750 = 82.5%/second
Minimi: 86*270 = 23 220 * 6.6 = 153 252 = 102.1%/second
Soldat 1.3.2(Exp. 1.5 B20):
DE: 178*190 = 33 820 * 2.6 = 87 932*2 = 117.24%/second
Mp5: 102*189 = 19 278 * 10 = 192 780 = 128.52%/second
Ak: 103*240 = 24 720 * 6 = 148 320 = 98.88%/second
AUG: 73*260 = 18 980 * 8.57 = 162 658.6 = 108.43%/second
Spas: 122*138 = 16 836 * 1.87 = 31 483.32*6 = 125.88%/second
R77: 252*330 = 83 160 * 1.5 = 124 740 = 83.16%/second
Minimi: 85 * 270 = 22 950 * 6.66 = 152 847 = 101.89%/second
(Spas and Deagle damage is per pellet/bullet, so it needs to be multiplied with the amount of pellets(6) and bullets(2))
So, we sum up the damage, then multiply with the amount of ammo per second, then we divide and we get the final result.
Feel free to expand it, or correct if there is something wrong.