Does 'In our sample, business units used some type of automatic spreading for about 39 percent of the volume of goods they shipped.' exist in a separate context from 'In our sample, business units used a type of spreading for exactly 39.2 percent of the volume of goods shipped.', without logical interdependence?
In our sample, business units used some type of automatic spreading for about 39 percent of the volume of goods they shipped.###In our sample, business units used a type of spreading for exactly 39.2 percent of the volume of goods shipped.