For example, say the initial staked amount of a node is 100,000 ONT and the node has accepted an additional stake of 1,000,000 ONT from other users. If the node decides to add another 100,000 ONT to its initial stake, the upper limit of the staked amount is increased to 2,000,000 ONT. Then, say the node receives another stake of 500,000 ONT from users. Now, the node decides to reduce the initial stake. Since it has accepted another 500,000 ONT from other users, it can only reduce the initial staked amount by 50,000 ONT. The other 50,000 ONT must wait for other users to withdraw part of their staked amount before the node can reduce it’s initial stake further.