Multiple Try Percentage Treshold Check

function calcAddPercent(startPercent, thresholdPercent = 95) {
    let currentPercent = startPercent;
    let ballCount = 1;
    while(currentPercent < thresholdPercent) {
        currentPercent += (100 - currentPercent) * (startPercent / 100);
        ballCount ++;
    }
    return ballCount;
}