diff --git a/matrix/src/lib.rs b/matrix/src/lib.rs
index 1282632..3fd5409 100644
--- a/matrix/src/lib.rs
+++ b/matrix/src/lib.rs
@@ -83,11 +83,11 @@ impl<const H: usize, const W: usize> Matrix<H, W> {
     }
 
     pub fn cofactor(&self, row: usize, col: usize) -> f32 {
-        self.minor(row, col) * if row + col % 1 == 0 {
-            1.0
-        }
-        else {
-            -1.0
+        let minor = self.minor(row, col);
+        if row + col % 1 == 0 {
+            minor
+        } else {
+            minor * -1.0
         }
     }