Ali:
234 pounds – 112 pounds = 122 pounds (47.86%)
Ali

Roger:
363 pounds – 164 pounds = 199 pounds (45.18%)

Kelly:
271 pounds – 109 pounds = 162 pounds (40.22%)
Kelly

Mark:
285 pounds – 129 pounds = 156 pounds (44.46%)
Mark

Bernie:
283 pounds – 130 pounds = 153 pounds (45.94%)

Dan:
310 pounds – 136 pounds = 174 pounds (43.87%)

Curtis
381 pounds – 150 pounds = 231 pounds (39.37%)

Jackie:
246 pounds – 89 pounds = 157 pounds (36.18%)

Jay:
293 pounds – 103 pounds = 190 pounds (35.15%)

Amanda:
204 pounds – 64 pounds = 145 pounds (31.37%)

Trent:
436 pounds – 135 pounds = 301 pounds (30.96%)

Mallory:
217 pounds – 65 pounds = 152 pounds (29.95%)
Mallory

Maggie:
239 pounds – 70 pounds = 169 pounds (29.29%)

Bette-Sue:
261 pounds – 75 pounds = 186 pounds (28.74%)

Neill:
317 pounds – 88 pounds = 229 pounds (27.76%)

Brittany:
221 pounds – 57 pounds = 164 pounds (25.79%)

Jenn:
254 pounds – 64 pounds = 190 pounds (25.20%)

Jenni:
267 pounds – 54 pounds = 213 pounds (20.22%)

Lynn:
409 pounds – 80 pounds = 329 pounds (19.56%)

(Photos courtesy of NBC)