Here you'll find graphical representation of statistic progression for the 4 original classes on PC. Values used to generate the graphs were taken directly from DDDK (Dungeon Defenders Development Kit) files, you will find a direct link to these values in text form at the bottom of this page.
Original work and data mine done by Putziorion. Numbers current as of 7.11b.
Hero Health[]
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{C}Hero Health = ROUNDDOWN(GetPlayerTemplateHealth SquireHero * (1 + (StatHeroHealth^HeroHealthExponentialFactor SquireHero)*HeroHealthLinearFactor SquireHero),0)
Hero Damage[]
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{C}Hero Attack = 1 + StatMultInitial_HeroDamage SquireHero*((MIN(StatHeroDamage + 1,StatBoostCapInitial_HeroDamage SquireHero)^(StatExpInitial_HeroDamage SquireHero*1.1) - 1) +StatMultFull_HeroDamage SquireHero*((StatHeroDamage+1)^(StatExpFull_HeroDamage SquireHero*1.1) - 1))
Hero Speed[]
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{C}Hero Speed = (GetPlayerTemplatePlayerGroundSpeed SquireHero) * (1 + (MIN(StatHeroSpeed,3)*StatMultInitial_HeroSpeed SquireHero) + (MIN(StatHeroSpeed,MAX_STAT_VALUE_SPEED SquireHero)*(StatMultFull_HeroSpeed SquireHero / MAX_STAT_VALUE_SPEED SquireHero)))
Hero Casting Speed[]
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{C}Hero Casting = 1 + (StatMultInitial_HeroCastingRate SquireHero*((MIN(StatHeroCasting + 1,4)^StatExpInitial_HeroCastingRate SquireHero) - 1)) + (StatMultFull_HeroCastingRate SquireHero*(((StatHeroCasting+1)^StatExpFull_HeroCastingRate SquireHero) - 1))
Hero Ability[]
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Ability One and Two = 1 + (StatMultInitial_HeroAbilityOne SquireHero*((MIN(StatAbilityOne + 1,4)^StatExpInitial_HeroAbilityOne SquireHero) - 1)) + (StatMultFull_HeroAbilityOne SquireHero*(((StatAbilityOne+1)^StatExptFull_HeroAbilityOne SquireHero) - 1))
Tower Health[]
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Tower Health = 1 + (StatMultInitial_DefenseHealth SquireHero*((MIN(StatTowerHealth + 1,4)^StatExpInitial_DefenseHealth SquireHero) - 1)) + (StatMultFull_DefenseHealth SquireHero*(((StatTowerHealth+1)^StatExptFull_DefenseHealth SquireHero) - 1))
Tower Damage[]
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{C}Tower Attack = 1 + (StatMultInitial_DefenseDamage SquireHero*((MIN(StatTowerDamage + 1,4)^StatExpInitial_DefenseDamage SquireHero) - 1)) + (StatMultFull_DefenseDamage SquireHero*(((StatTowerDamage+1)^StatExptFull_DefenseDamage SquireHero) - 1))
Tower Speed[]
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Tower Rate = 1 / (1 + (StatMultInitial_DefenseAttackRate SquireHero*((MIN(StatTowerRate + 1,4)^StatExpInitial_DefenseAttackRate SquireHero) - 1)) + (HeroDefenseAttackRateLinearFactor SquireHero *(((StatTowerRate+1)^HeroDefenseAttackRateExponentialFactor SquireHero) - 1)))
Tower AOE[]
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Tower AOE = 1 + (StatMultInitial_DefenseAOE SquireHero*((MIN(StatTowerAOE + 1,4)^StatExpInitial_DefenseAOE SquireHero) - 1)) + (StatMultFull_DefenseAOE SquireHero*(((StatTowerAOE+1)^StatExptFull_DefenseAOE SquireHero) - 1))
External Links[]
Original Forum Thread (http://forums.trendyent.com/showthread.php?30110-Graphical-Stat-Ramps-for-stat-planning-in-one-place)
Text file of 7.11b values (http://onebrownshoe.com/dd/hero-stats-7.11b.txt)