Table: big_loser_couples
Columns: contestant
starting_weight_kg
final_weight_kg
weight_lost_kg
percentage_lost
position_out_of_eliminated_contestants

Question: What is the Percentage Lost for the contestant with a starting weight above 102 kg who lost 46.9 kg?
SQL: SELECT "percentage_lost" FROM big_loser_couples WHERE "starting_weight_kg" > 102 AND "weight_lost_kg" = 46.9