For example: "The value of the non-originating material of the good does not exceed 40%". Conversely, this would mean that the local value content must be at least 60%.

The focus is on the total local value that makes up the final value of the finished product.
 
Eg: Sparkling beverages made, in part, from malt.
Sugar + Beer + Juice (imported) + Manpower cost + profit --> Sparkling beverage
$1      $2      $3      $3      $1      $10     
 
Since the local value content is 70%, it is greater than the minimum threshold of 60%. Therefore, sparkling beverage meets the VA rule and qualifies as a Singaporean product.