No one knows for sure how the tax limitation and rollback initiatives would affect local governments if the measures get on the November ballot and are approved by voters.

The state Tax Commission has been trying to calculate just how much money each of the state's cities would lose if they have to make the mandated cutbacks.The tax commission's first effort was based on 1986 property tax figures. Now, those calculations are being updated using 1987 numbers with some unexpected and unwelcome results.

Officials in some cities are being notified that their budgets will be harder hit than originally anticipated. In Sandy, for example, the estimated loss has jumped from about $500,000 to about $700,000.

The new estimates will not be released until next month, tax commission officials say. But state Tax Commissioner Roger Tew has warned that there will be "fairly dramatic changes in some numbers."

Leaders of the tax-protest movement, however, have little confidence in the state's calculations. Nor do they trust the lists of budget reductions that government officials say the initiatives would force them to make.

Radio talk-show host Mills Crenshaw recently likened the efforts to defeat the initiatives to fairy tales and labeled the information that is starting to be circulated as "scare tactics and nonsense."