I have a used "riot" 520-30 butt stock.
Sunset Beach - 1997 1-520 was released on: USA: 2 February 1999
520
It is 520
520
520
520
520
11% of 520 = 11% * 520 = 0.11 * 520 = 57.2
85% of 520= 85% * 520= 0.85 * 520= 442
17% of 520= 17% * 520= 0.17 * 520= 88.4
70% of 520= 70% * 520= 0.7 * 520= 364