Mateusz Morawiecki said the number has fallen to 8 percent from 28 percent in March.
He added that the economy had "stabilized", especially compared to other countries.
The Polish government in March came up with a multibillion relief and stimulus package to mitigate the economic implications of the COVID-19 pandemic.
Morawiecki said on Thursday that 57 percent Polish companies have received state financial support so far to help them weather the crisis.
A study carried out at the end of April found that 12 percent of firms were planning layoffs.
Employment in Polish companies dropped by 2.1 percent in April on average in year-on-year terms, while falling by 2.4 percent from a month earlier, the country’s Central Statistical Office (GUS) said on Wednesday. The figures are for firms with more than nine employees.
A total of 20,143 people have tested positive for the COVID-19 disease in Poland, with 972 deaths from the coronavirus so far, officials said on Thursday evening.
(pk)
Source: PAP