Spice must flow

function spiceMustFlow(yield){

    let operationalDays=0;
    let spiceExtracted=0;


   while (yield>=100){
    operationalDays++;
    spiceExtracted+=yield;
    spiceExtracted-=26;


    yield-=10;

   }
   spiceExtracted-=26;
   console.log(operationalDays);
   console.log(spiceExtracted);

}