If a company paid S$20,000 in premiums and its employees claimed S$16,000, the loss ratio is 80%.
Insurers use the loss ratio when setting renewal terms. A high ratio usually leads to a higher renewal premium; a low one gives room to negotiate.
For small teams on package rates, a single large claim moves the renewal less than it would for a large company whose premium is based on its own claims. One large, one-off claim is still worth explaining when you negotiate.