When platinum is cheaper than gold, the ratio drops below one. When platinum is more expensive than gold, the ratio rises above one. Historically, the platinum-to-gold ratio tends to stay above one most of the time, which implies that platinum sells at a higher price than gold.
The average annual premium paid for pet insurance by UK cat owners is Â£205 - equating to just over Â£17 per month (source: Key Note). But you might pay much more or much less than this, depending on 3 key factors that influence the cost.
Food per month per cat is probably going to run you $20. Do not feed junk food or the lowest cost stuff, it causes more problems and more vet trips. Litter per month--price out what you like, most cats go through a 25lb bag of litter every 6 weeks.