Mineral Questions after mothers passing

I found an old breakdown of a check… The amount just does not seem correct to me… but maybe I am looking at it wrong.

The lease chosen was for sec33 T2N R2W Containing 20 acres more or less The option picked was No Bonus for a 3 year term retaining a royalty of 1/5 Royality Decimal Interest .00052081

After looking at these I just feel like something is off. Can anyone look these over an advise?