Repair rate calculations off... again

Since this'll be the second time the wrong repair rates have been calculated (my old repair numbers, the correct numbers, were overwritten! This saddens me greatly...), I thought it appropriate to explain my math. It applies to all repairs, and has already been checked against certain NPCs multiple times. Like the table indicates, applying an upgrade multiplies the cost by that much, give-or-take one gold for rounding. Let's take the second entry for example:

• "Hilt Polishing"+"Hilt Polishing"+"Hilt Polishing"+"Hilt Polishing"+"Granites' Gathering Knife Upgrade"
  • This is not equivalent to 1.7+1.7+1.7+1.7+10=16.8!
  • It is also not equivalent to (1.7+1.7+1.7+1.7)*10=68!

The correct repair multiplier is 1.7*1.7*1.7*1.7*10=83.5. This was the value I calculated several years ago, and unless someone wishes to protest these calculations, please refrain from incorrectly calculating them the next time the table gets updated!