Depends on the breed/type, weight, body condition and heath status, as well as market prices for a calf in your area. Prices differ if a calf is beef versus dairy; you'll see dairy bull calves go for quite cheap compared with dairy heifers.
For beef steers, that's awfully cheap. An 8 month-old beef steer, assuming he's around 800 lbs. will go for over twice that--say around $1250, some markets pulling the price up to $1400 for a good beef steer. Similar deal with a beef heifer, 800 lb beef heifers going for around $1000 to over $1200. With dairy bull calves, though, that's an okay price, but more at the low end for dairy bull calves 700 lbs and up. Dairy heifers will go for a lot more than that.
You seem to be saying that 15% off gives a discounted price of 680, and asking what the original price was before the discount. Since the price was discounted by 15%, the discounted price is 85% of the original price. Dividing 680 by 0.85 gives 800 as the original price.
800 * 0.85 = 680 680 * 0.8 = 544 800 - 544 = 256 256 / 800 = 0.32 = 32% 100 - 32 = 68% of the original price
Sure its good, its definitely not bad.
680
24% of 680= 24% * 680= 0.24 * 680= 163.2
680
12% of 680= 12% * 680= 0.12 * 680= 81.6
2% of 680 = 2% * 680 = 0.02 * 680 = 13.6
15% off of 680 = 85% of 680 = 680*85/100 = 578
680+250 is 930. 680 + 250 930
680 X 1/8 = 680/8 = 85
It is then 680 because 5 rounds up to 10