Respuesta :
There are 3 systems as far as considering the percentage, they are progressive, regressive and proportional, progressive is good as the rate of tax increases proportionally as the income increases...taxes can be used for long term development projects which will eventually be fruitful for the economy.
As far as the percentage is considered there are 3 system progressive, regressive and proportional, progressive is good as rate of tax increases as income increases...taxes can be used for long term development projects which will eventually be fruitful for the economy...but then again this is an open ended question so the answer varies economy to economy's situation