SpiceMustFlow

function solve(startingYield) {
    startingYield = Number.parseInt(startingYield);
    let days = 0;
    let total = 0;

    while(startingYield >= 100) {
        days++;
        total += startingYield;
        startingYield -= 10;
        total -= 26;
    }

    total -= 26;
    if (total < 0) {
        total = 0;
    }

    console.log(days);
    console.log(total);
}

solve(111);