Complex sentence: The Michigan government used its reviews of contracts issued by the state to secure an increase in nonwhite employment; between August 1967 and the end of fiscal year 1969-1970, minority group employment by the contracted companies increased by 21.1 percent.
Split into simpler sentences: The Michigan government used its reviews of contracts issued by the state to secure an increase in nonwhite employment. Between August 1967 and the end of fiscal year 1969-1970, minority group employment by the contracted companies increased by 21.1 percent.