multiplication by percentage

src/multiplication.c

@@ -24,6 +24,9 @@ int multiply_by_ten(int a) {
     return a * 10;
 }
 
+float multiply_by_percentage(float num, float percentage) {
+    return num * (percentage / 100);
+}
 
 
     

src/multiplication.h

@@ -6,5 +6,6 @@ int multiply_three_integers(int a, int b, int c);
 int multiply_left_shift(int a, int b);
 int multiply_right_shift(int a, int b);
 int multiply_by_ten(int a);
+float multiply_by_percentage(float num, float percentage);
 #endif // MULTIPLICATION_H