percent defectivepercent errorpercentagepercentage distributionpercentage errorpercentage pointpercentilepercentile normpercentile pointpercentile rankperceptionpercussion pressperfectperfect codeperfect competitionperfect competition equilibriumperfect cubeperfect fieldperfect graphperfect groupperfect n th powerperfect numberperfect powerperfect setperfect squareperfectionperfectlyperforatingperforatorperformperformanceperformance budgetingperformance ratingperformance ratiopericenterpericycloidperigeeperigonperihelionperimeterperimeter of a polygonperinelionperiodperiod budgetperiod curveperiod in arithmeticperiod in astronomyperiod intervalperiod of a functionperiod of a repeating decimal
