The referendum outcome was a "no" majority, meaning that the Voice to Parliament proposal was not approved. The referendum failed to receive a majority of votes across the country, falling short with a projected percentage of 55% . The Constitution can only be changed if there is a double majority, meaning there must be a national majority of voters across all states and territories and a majority of voters in a majority of the states (at least four of the six states) . The referendum results were declared quite early in the evening, with Tasmania being the first state to be declared as a "no" state, followed by New South Wales and South Australia. The Northern Territory and ACT counts are not included in the majority of states, but do contribute to the overall national count. The referendum cost was estimated to be about $450 million.