u/intolauren

Apologies if this has been asked before but has anyone else noticed a weird difference in the % you are given in regards to accuracy after a lesson? I got one answer wrong and received 25%! Yesterday I did a lesson of the same length, got two answers wrong and received 46%! It just doesn’t seem to make sense, especially when just a week ago the same lessons and mistakes would still be marked around 80%. Is this a bug/glitch or it is a new way of calculating percentages perhaps based on overall scores from other lessons too?