Time for a run:
1min 23sec for 28 bars.
Xp + Gp per run:
1573.6xp per invent.
4144gp loss per invent.
Converted to per minute:
1279.3xp per min.
3369.1gp per min.
Converted to per hour:
76.7kxp/hr.
202k gp/hr.
Cost for smithing gold ore -> bars:
2.6gp/xp.
Data for 80 -> 99 smithing:
28.6mgp for 99.
143 hours for 99.