If we have iquidius explorer for a coin, then we use the explorer to calculate the reward. Normally it is calculated via official data, but some coins have a changeable reward - sometimes we follow what the current block is and then calculate the reward and sometimes we have a fixed reward.
This means you should tell us which coin you are mining so we could check, but that checking process is currently impossible because of the huge number of users and enquiries and we are not able to check and answer for all the particular questions

Regards
CGM Team