I have the following output. Is there way to predict how long it takes for me to mine a block looking at the output? How do you calculate and what number do you use?

New Block: 303100 - Diff: 9.992898 / 9.992898
Best/Max diff: [ 9.913507 / 0.000000 ]
6ch/h:    79.24 - 2077 [ 604 / 636 / 837 ]
7ch/h:     8.81 - 231 [ 70 / 79 / 82 ]
8ch/h:     0.88 - 23 [ 6 / 7 / 10 ]
9ch/h:     0.11 - 3 [ 1 / 0 / 2 ]
MNPS:423.47   PPS:35823        WPS:13.837   ACC:2588
Current Primorial: 61 - Sieve Size: 1974500 - Prime Count: 42389