Understanding CPU from TOP command having multi-core processor

I am currently using the TOP command to fetch the CPU and Memory of a process. My query here is on understanding the value it displays.

 PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                                                           
 6742 aaaa      20   0 843596   1.0g  238841 S   4.0  1.7   0:49.66 java                                                                                                                              
14355 aaaa      20   0 658704 749560  234112 S   3.3  1.2  15:45.75 java                                                                                                                              
 2779 aaaa      20   0 688868 846620  160844 S   3.0  1.4  54:30.61 java                                                                                                                              
 2337 aaaa      20   0 701200   1.0g  231923 S   2.3  1.7  13:18.34 java 

Let's say, I'm monitoring the CPU of a process ID 6742, it sometimes show 4%, sometimes 8%, 6% and sometimes it shoots up to 200% and comes back. When i check the number of cores the system has, it says 8.

nproc -> 8

So should I calculate the CPU which is shown in the TOP command or should i calculate it based on the number of cores, like since it has 8 cores, so out of 800%, the CPU is 200% for that process ID.

How should we calculate this scenario?