Battery/ESS cycle count, DOD
Usually, a "cycle" corresponds to 100% of the nominal capacity of the battery consumed and re-charged.

For instance, with only 10% DOD, one "cycle" would comprise 10 discharge-charge cycles of 10% each. For 50% DOD, you have two cycles of discharge and recharge which together count as one "cycle" in the specifications.

If that wasn't the case, in your example diagram, 10% DOD would only yield the energy-equivalent of 700 full cycles, compared to 500 full cycles at 100% DOD.