A real estate agent agrees to sell an apartment complex according to the following commission schedule: $50,000 plus 30% of the selling price in excess of $850,000. Assuming that the complex will sell at some price between $850,000 and $ 1,200,000 inclusive, over what range does the agent's commission vary? How does the commission vary as a percent of selling price? As a percent of selling price, the commission ranges from enter your response here% to enter your response here%. (Round to one decimal place as needed. Use ascending order.)