How much did Madara power up after absorbing the Shinju, following his crash into it and the tree’s collapse after being sliced near its base by Naruto's Lava Rasenshuriken? The Lava Rasenshuriken was from So6P Naruto at his base state, not powered-up.
Madara went from getting been sliced in half to being able to handle both Six Paths Naruto (after powering up) alongside Rinnegan Sasuke, though not as effortlessly as he did after obtaining his second Rinneggan.