What percentage of Europe’s population died during that time? (you will have to look online for this)

During what time period are you referring to? Could you please provide more context or specify the event or time period you are referring to?

To find the percentage of Europe's population that died during a specific time, I would need the exact time frame or event you are referring to. Europe has experienced various periods of significant population loss throughout its history, such as the Black Death in the 14th century or the casualties of World War II. Please provide more specific details so that I can assist you in finding the information you need.

To find the percentage of Europe's population that died during a specific time period, we can look up historical data online. Here's how you can do it:

1. Open a web browser and go to a reliable search engine like Google.

2. Type in the search bar, "What percentage of Europe's population died during [specify the time period you are referring to]." For example, if you are referring to the Black Death in the 14th century, you can type, "What percentage of Europe's population died during the Black Death?"

3. Review the search results and look for reputable sources such as academic institutions, historical records, or reliable news outlets. These sources typically provide accurate and well-researched information.

4. Click on the relevant sources to read the information. Make sure to cross-reference multiple sources to get a comprehensive understanding of the topic.

5. Look for the specific percentage or range mentioned in the sources. It could vary depending on the time period you are referring to, as well as different estimates from different historians or scholars. Note down the percentage that is consistently mentioned or supported by multiple sources.

Keep in mind that historical events often have varying estimates, so it's essential to take into account the reliability and credibility of the sources you encounter while conducting your research.