No, it's not. If you break the 580 into pieces... 560 is divisible by 8 (the answer is 70). This leaves 20 - which is not divisible exactly by 8.
580
8 as a percent of 20 is: 8/20 times 100 = 40%
0.4 x 20 = 8
72.5
Two times a year, leading to over 20 piglets a year, 8-12 per litter.
2,400
20 - (8 x 2) = 4
no you get 12.5
It is: 160
8 times 4 will give you 32.
300/8 = 37.5 times.