percentages for dropped and outcomes in table

public/app.js

@@ -12,7 +12,15 @@ const renderTable = () => {
 		.enter()
 		.append('tr')
 		.selectAll('td')
-		.data(d => [d.instance_id, d.course, d.graduation_date, d.total_students, d.dropped, d.graduates, d.ninety_day_outcomes])
+		.data(d => [
+			d.instance_id, 
+			d.course, 
+			d.graduation_date, 
+			d.total_students, 
+			`${d.dropped} (${Math.floor(d.dropped/d.total_students*100)}%)`, 
+			d.graduates,
+			`${d.ninety_day_outcomes} (${Math.floor(d.ninety_day_outcomes/d.graduates*100)}%)`
+		])
 		.enter()
 		.append('td')
 		.text(value => value)