I tried it with invested assets (~$3.2M), invested assets + home equity (~$3.6M), and just for kicks even put. in $4M. All three came out the same. 98.5%.
I don't know how it rounds off, but $9,800,000 puts you at 98.7%, while $9,800,001 puts you at 99.0%. Meanwhile, $1,000,000 puts you at...