Final answer:
In a progressive tax rate system, the tax rate increases as the tax base grows larger, meaning higher earners pay a higher percentage of their income in taxes.
Step-by-step explanation:
Under a progressive tax rate system, the applicable tax rate increases as the tax base grows larger. This implies that individuals and entities with higher income brackets pay a larger percentage of their income in taxes compared to those in lower brackets. For instance, a person earning between $50,000 and $80,000 might be taxed at a rate of 20%, while another earning between $300,000 and $1,000,000 would face a tax rate of 35%.