In 2022, the real GDP of an economy was 524.5 billion524.5\text{ billion}524.5 billion. In 2023, the real GDP was recorded as 538.2 billion538.2\text{ billion}538.2 billion. What was the rate of economic growth in 2023?
−2.61%-2.61\%−2.61%
2.55%2.55\%2.55%
2.61%2.61\%2.61%
−2.55%-2.55\%−2.55%
