The second level 3 lockdown wiped out retailer optimism last month.
The latest Retail Radar report shows the most recent lockdown in Auckland had a serious impact on retail sales throughout the country.
More than 68 per cent of retailers said their sales had fallen since level 3 began, but in Auckland this was 90 per cent.
The report outlined that 13 per cent of retailers were now no longer confident their businesses would survive the disruption caused by the Covid-19 pandemic.