}

    double getConfidencePercentage() {
        return 100.0 * DataSeries.confidenceInDifference(baseVersion.totalTime, currentVersion.totalTime)
    }

    String getFormattedDifferencePercentage() {
        String.format("%.2f%%", differencePercentage)
    }

    String getFormattedConfidence() {
        String.format("%.1f%%", confidencePercentage)
    }

    boolean confidentToSayBetter() {