I showed more than just Piccolo for comparisons sake.
Sayan Saga Raditsu: 1,200 Farmer with Shotgun: 5 Piccolo (with weighted clothing) : 322 Piccolo (without weighted clothing) : 408 Piccolo's Makankosappo (1st Try) : 1,330 Piccolo's Makankosappo (2nd Try) : 1,440 Goku (with weighted clothing) : 334 Goku (without weighted clothing) : 416 Goku (with Kamehameha) : 924 Gohan: 1 to 1,307 (his power changes with his emotions) One year later. . . Saibamen: 1,200 Yamucha: 1,480 Kuririn: 1,083 Piccolo: 3,000 Gohan: 981 Gohan's Masenko: 2,800 Goku: 5,000 Goku Kaioken x1: 8,000 Goku Kaioken x2: 16,000 Goku Kaioken x3: 24,000 Goku Kaioken x4: 32,000 Nappa: 4,000 Vegita: 18,000 Ozouru Vegita: 180,000 Ozouru Gohan: 9,810 Frieza Saga Gohan: 1,500 Kuririn: 1,500 Furiza's Men: < 1,000 Vegita: 24,000 Kui: 18,000 Dudoria: 21,000 Namek Fighters: 3,000 Zarbon: 23,000 Zarbon Monster: 33,000 Vegita (healed): 35,000 Kuririn: 10,000 Gohan: 10,000 Gerudo: 10,000 Rikum: 40,000 Jese: 50,000 Burter: 45,000 Ginyu: 120,000 Goku (Scouter): 5,000 Goku vs Jese and Burter: bursts of 60,000 Goku max: 180,000 Ginyu in Goku's Body: 23,000 Vegita: 60,000 Kuririn: 16,500 Gohan: 17,000 Nail: 45,000 Vegita: 530,000 Furiza (form 1): 530,000 Furiza (form 2): 1,000,000 Piccolo (merged with Nail): 800,000 Furiza (form 3): 2,500,000 Vegita (after Dende): 1,000,000 Furiza (form 4 33%): 4,000,000 Furiza (form 4 50%): 6,000,000 Furiza (form 4 70%): 8,400,000 Furiza (form 4 100%): 12,000,000 Goku: 300,000 Goku Kaioken x10: 3,000,000 Goku Kaioken x20: 6,000,000 Super Saiya-jin Goku: 15,000,000 Back on earth. . . King Cold: 30,000,000 Furiza Bot: 25,000,000 Trunks (Supressed): 5 Super Saiya-jin Trunks: 35,000,000 Super Saiya-jin Goku: 40,000,000