Assume that a painter produces 20 paintings this year and 20 paintings next year. what is the annual change in nominal gdp if the price of paintings rises from $1,000 this year to $1,500 next year

Assume that a painter produces 20 paintings this year and 20 paintings next year. what is the annual change in nominal gdp if the price of paintings rises from $1,000 this year to $1,500 next year