Climb gradient requirement on SID

[IFLY_INDIGO]

so what's the answer?

So irrespective of what analysis airline has done, there is no way for a pilot to ascertain on the ground (using chart/table) that he would be meet the climb gradient requirement of SID? experience or FMGS prediction (magenta/amber as suggested by rudderrudderrat) is the only way out?

using the formula GS * % climb gradient, does not sound the right way to ascertain the climb performance on ground. it doesn't include the available thrust, OAT, PA, actual takeoff weight in the calculation, which my common sense tells should be the part of calculation. After all, we can be flying level with any of the GS mentioned on the chart!