diff --git a/src/sum/index.js b/src/sum/index.js
index 2d9cbe5..9dda5bc 100644
--- a/src/sum/index.js
+++ b/src/sum/index.js
@@ -25,6 +25,6 @@ import stat from "../stat";
  * // results is sum of all interesecting pixels at or above sea level
  * [2131]
  */
-export default function sum(georaster, geometry, test) {
-  return stat(georaster, geometry, "sum", test, { rescale: true, vrm: "minimal" });
+export default function sum(georaster, geometry, test, { rescale, vrm } = {}) {
+  return stat(georaster, geometry, "sum", test, { rescale, vrm });
 }
diff --git a/src/sum/sum.test.js b/src/sum/sum.test.js
index 7b17461..15edc18 100644
--- a/src/sum/sum.test.js
+++ b/src/sum/sum.test.js
@@ -313,6 +313,21 @@ test("Virtual Resampling", async ({ eq }) => {
     await fetchJson(`http://localhost:${port}/data/virtual-resampling/virtual-resampling-one.geojson`)
   ];
   const [georaster, geojson] = values;
-  const results = await sum(georaster, geojson, undefined);
-  eq(results, [0.30158730158730157]);
+
+  let msg;
+  try {
+    await sum(georaster, geojson, undefined);
+  } catch (error) {
+    msg = error.toString();
+  }
+  eq(msg, "No Values were found in the given geometry");
+
+  const results_minimal = await sum(georaster, geojson, undefined, { vrm: "minimal", rescale: true });
+  eq(results_minimal, [0.30158730158730157]);
+
+  const results_100 = await sum(georaster, geojson, undefined, { vrm: [100, 100], rescale: true });
+  eq(results_100, [0.3952]);
+
+  const results_1000 = await sum(georaster, geojson, undefined, { vrm: [10_000, 10_000], rescale: true });
+  eq(results_1000, [0.41278374]);
 });