OK, but that math is not correct. 0.18/200 = 0.0009 [EDIT: wrong]
If you can’t find any R200 in the junk box, do not despair. I’d just grab one from the other driver and keep rolling, replacing it will not be a big deal. “R200 is cheap 50pcs/$1 shipped~~“:http://www.ebay.com/itm/50pcs-SMD-1206-Resistor-200-Ohm-200R-/350972597504 [EDIT: wrong, I linked to 200R~~ the digikey/mouser info should be right] I’m assuming that it’s 1206 sized, but I could be wrong. Anyway you probably won’t end up wanting R200 since that’s apparently a much too high number! 1206 resistors of a more known quality are about $0.10-$0.25 each in QTY/10 on Mouser or Digikey, but you’ve really got to get your order together for it to make sense because shipping is $6+.