Based only on the fatal injury percent change from 2010 that is provided, which of the following states would have the SAFEST\u00A0work environment?

When basing the safety level of a state on only the percent change from the previous year, the state with a negative percent change would be the safest, as a negative percent would indicate a reduction in fatal injuries from the previous year. Out of the states listed as options, Pennsylvania has the highest negative percent change; therefore, Pennsylvania would be the state with the safest work environment.