The wealth calculator script can determine starting gold or appropriate wealth level for characters based on level, party size, and whether this is a new character or a party during the course of a campaign. Use 'By this level' if you want values for the start of that level (useful if you want to make sure your party's wealth has been on-track thus far) or use 'During this level' if you want to see how much wealth the party should accumulate over the course of that level. 'Effective' converts magic items into their gold piece values (at 100%, 50%, or 20%), and 'Cumulative' adds all previous levels starting from level 1 (or higher) together into one large sum.