Money making guide/Running laps of the Canifis rooftop course
Lua error in ...ribunto/includes/Engines/LuaCommon/lualib/mwInit.lua at line 23: bad argument #1 to 'old_ipairs' (table expected, got nil). The Canifis Rooftop Course has a 2/3 chance of spawning a Mark of grace upon a full completion. The mark has a 3 minute cooldown. Since each mark on average takes 1.5 laps to complete, and since each lap takes 43.8 seconds to complete, it should take an average of 245.7 seconds per mark, therefore allowing approximately 14.65 marks per hour.
Marks can be traded in at a rate of 10 marks of grace per amylase pack, which contains 100 amylase crystals. This effectively means one mark is worth 10 crystals; worth 15,380 per mark.
Unlike other courses, the Canifis course does not suffer from the 5x mark spawn rate reduction once you reach an agility level 20 higher than the course's requirement. This means you can do this method to 99 Agility.
Excluding fails, you can do 54,156 laps of the Canifis Rooftop Course from 40 -> 99 Agility. This is, of course, unreasonable due to most definitely failing many times on the way to 99. However, if hypothetically you could avoid failing laps, you are able to get up to an average of 36,104 marks of grace by 99 Agility. This would award you with a total of 555,279,520.