Total nonfarm payroll rose by 57,000 jobs in June, according to the U.S. Bureau of Labor Statistics, considerably fewer jobs than private-sector projections indicated. The unemployment rate ticked down to 4.2%, due mostly to the labor participation rate falling, economists said. Payroll numbers for April and May were also revised downward by a total of 74,000 jobs, indicating a deeper slowdown may be occurring “despite recent optimism,” Glassdoor’s Chief Economist Daniel Zhao said in a statement.