I was looking at the iron tools in the /shop menu. I believe the iron tools prices may have been accidently swapped with the gold tools. In all the other iron-based menu items, the product is rated at 650 per ingot except for the tools shop. Obviously, iron picks and diamond picks are less cause those are typically obtained from the vote keys but axes and shovels.
I actually checked the shop quick and neo's right In the tools section of /shop on economy based on the price of gold and iron ingots of /shop, the prices for gold tools are actually supposed to be the price of iron tools and vice versa. For example, the gold pickaxe in shop is $1,950 which would be 650 x 3, except iron ingots are 650 per not gold, and the iron pickaxe is $750 which would be 250 x 3 which is the price of a gold ingot not an iron ingot They're both priced oppositely and incorrectly, the suggestion is to have the prices switched