Assume that a country has income per capita of $500 and total national income of $6 million. Population for this country is D. (Enter your response rounded to the nearest whole number.) If population grows by 2 percent in some year while total income grows by 4 percent, income per capita for this country will now be $D. (Enter your response rounded to the nearest whole number.) If this country's population had not grown during the year, income per capita would be $|:|. (Enter your response rounded to the nearest whole number.)