IO-1215 Roudning on dashboard graph.

client/src/components/dashboard-components/monthly-revenue-graph/monthly-revenue-graph.component.jsx

@@ -63,7 +63,9 @@ export default function DashboardMonthlyRevenueGraph({ data, ...cardProps }) {
             <CartesianGrid stroke="#f5f5f5" />
             <XAxis dataKey="date" />
             <YAxis />
-            <Tooltip />
+            <Tooltip
+              formatter={(value, name, props) => value && value.toFixed(2)}
+            />
             <Legend />
             <Area
               type="monotone"