Twenty Dollars, No Difference: A Cluster-Randomised Trial of Booking Deposits Across 38 Hair Salons, Against the Before-and-After Figure That Steered the RolloutResolving to Twenty Dollars, No Difference: A Cluster-Randomised Trial of Booking Deposits Across 38 Hair Salons, Against the Before-and-After Figure That Steered the Rollout…