Monitoring the network throughput on the branch's Internet connection during peak usage hours helps determine whether the available bandwidth is sufficient for company needs. If the throughput consistently nears or exceeds the purchased bandwidth, it indicates that the connection is saturated, and it's time to consider a bandwidth upgrade or optimization strategies. Monitoring at non-peak hours might not give an accurate assessment, as the usage is not representative of the high demand period. Calculating bandwidth based on the number of users is not as effective because different applications have varying bandwidth requirements, so it doesn't provide insight into actual consumption. Installing a faster router does not increase the bandwidth provided by the ISP.