Battery usage of one app 116%?

So, has anyone experienced anything like this? It's from a M4 Aqua Dual.
One screenshot is taken this afternoon and shows the battery usage of Android OS of 116% and then when checked again later in the day Android OS went back to 49%? I realise that if other apps use more battery the usage of "android OS" will diminish, but 116%?

Thanks,

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