Hong Kong cabbies are counting down to the end of the “keep the change” tradition as the industry prepares for a mandatory shift from cash-only payments to electronic settlements.In the weeks leading up to April 1, taxi drivers are racing to install e-payment tools, while service providers say 90 per cent of the cabbies have already adopted such solutions.Chau Kwok-keung, chairman of the Hong Kong Taxi and Public Light Bus Association, said the transition to digital payments meant cabbies...