Question: how do you calculate percentage change in nominal gdp?
Answer: the issue of «nominal» most people know intuitively that if you pay cheque increases to 110 from 100, you have had a 10 percent pay increase. It follows that calculation if percetage increases is the difference in amounts (110 - 100) relative to starting point (100): (110–100)/100 = 1/10 = 10 percent.