Add 407 to 623 and you'll have your answer !... (It's more than a thousand !)
623/1000
-39 + 674 - 12 = 623
623 as of June 17 2012
750 - 1000 = -250
1000 - 101 = 899
1000 - 393 = 607
1,000 minus 99 is 901.
158,695 minus 1,000 = 157,695
6.575 = 6575/1000 = 623/40
1000 - 68.96 = 931.04
1000 - 229 = 771