A geographic study of industrial emissions in a rapidly developing Newly Industrialising Country (NIC) indicates that its annual carbon dioxide emissions were 125 million tonnes125\text{ million tonnes}125 million tonnes (MtCO2e\text{MtCO}_2\text{e}MtCO2e) in 2012. By 2024, due to intense urban-industrial growth, these emissions increased to 315 million tonnes315\text{ million tonnes}315 million tonnes (MtCO2e\text{MtCO}_2\text{e}MtCO2e).
Identify the correct percentage increase in the annual carbon dioxide emissions of this country from 2012 to 2024.
60.3%60.3\%60.3%
152%152\%152%
252%252\%252%
39.7%39.7\%39.7%