Saiyajin
Oozaru: Doubles your power level and stats PL- any
SSj: Doubles your power level and stats PL- 75,000+
Ussj: Power level Triples and lowers your speed by 1/4 your Power level. PL- 80,000
SSj2: Triples power level and stats PL-125,000
SSj3: Power level and stats increase by x4 PL-200,000
SSj4: Power level and stats increases by x5 PL-350,000
Golden Oozaru: Power level and stats increases by x6 PL-400,000 (must be on another planet besides Earth)
Ussj4: Power level and stats increases by x7 PL-450,000
Omega Ssj: Power level and stats increases by x10 PL-500,000
Changeling
2nd Form Transformation: Doubles your power level and stats PL-100,000+
3rd Form Transformation: Triples your power level and stats PL-175,000+
4th Form Transformation: Power level increases by x4 PL-225,000+
Ultimate 4th Form/Perfect Form Transformation: Power level and stats increase by x5 PL-500,000+
Final Form: Power Power level and stats increase by x6 PL-750,000
Namek
Super Namek: Doubles your power level and stats. PL-150,000
Dragon Form: Doubles your power level and stats PL-250,000
Eternal Dragon Form: Power level and stats triples PL-400,000
Human
Super Human: Triples users power level and stats PL- 300,000
Triclops/Tien
Platinum Form: Doubles your power level and stats PL-200,000+
Androids
Perfection: Doubles users power level and stats PL-100,000+
Ultra Perfection: Triples users power level and stats PL-200,000+
Super-insert your name here-: PPower level and stats increase by x4 PL-300,000+
Ultimite Super Perfection: Power level and stats increase by x5 PL-500,000+