Move your coins to a new address and see if that address is accurate on the rich list, or perhaps move to an exchange and back and see if your receiving address is then showing at 100%.  When you move it to an exchange for example, look at the detail of the tx to the exchange in the block explorer and see how many debits there were - there should be many entries of small addresses of the block reward size of when you mined them which are then consolidated to the total amount. If you move them back the tx should have only a couple of entries consisting of the total and block reward.

You will also note that when you have lots of solo mined blocks that first consolidation transaction when you move it to an exchange for example has a large transaction fee because of all the processing that has to be done. The transaction back many times have no tx fee. Also, with some coins if you have many small reward size solo blocks and you want to send a too large an amount, the tx becomes too large and the wallet gives an error, then you have to send it in smaller chunks. I also have a theory that is why pool withdrawals sometimes get stuck with some coins if the withdrawal size is too big. I dont have a pool so I cannot test that theory.

EDIT: I am thinking off the cuff here with another theory completely untested at this point, that perhaps POW and POS work differently in that the one method's rewards are in its own unique addresses and the other method is in your receiving address. This could explain a 40% total in the rich list because you might have mined 60% POW and 40% POS and the rich list only shows the POS portion.