diff --git a/staging/src/k8s.io/apimachinery/pkg/api/resource/quantity.go b/staging/src/k8s.io/apimachinery/pkg/api/resource/quantity.go
index 93a6c0c5004..b73b3b1414b 100644
--- a/staging/src/k8s.io/apimachinery/pkg/api/resource/quantity.go
+++ b/staging/src/k8s.io/apimachinery/pkg/api/resource/quantity.go
@@ -697,7 +697,9 @@ func (q *Quantity) MilliValue() int64 {
 	return q.ScaledValue(Milli)
 }
 
-// ScaledValue returns the value of ceil(q * 10^scale); this could overflow an int64.
+// ScaledValue returns the value of ceil(q / 10^scale).
+// For example, NewQuantity(1, DecimalSI).ScaledValue(Milli) returns 1000.
+// This could overflow an int64.
 // To detect overflow, call Value() first and verify the expected magnitude.
 func (q *Quantity) ScaledValue(scale Scale) int64 {
 	if q.d.Dec == nil {
diff --git a/staging/src/k8s.io/apimachinery/pkg/api/resource/quantity_test.go b/staging/src/k8s.io/apimachinery/pkg/api/resource/quantity_test.go
index 915b2444ea8..886f36cc3b1 100644
--- a/staging/src/k8s.io/apimachinery/pkg/api/resource/quantity_test.go
+++ b/staging/src/k8s.io/apimachinery/pkg/api/resource/quantity_test.go
@@ -1029,6 +1029,7 @@ func TestScaledValue(t *testing.T) {
 		{0, Micro, 1000 * 1000},
 		{0, Milli, 1000},
 		{0, 0, 1},
+		{2, -2, 100 * 100},
 	}
 
 	for _, item := range table {