-35.94% is the change from 807 to 517
Calculation steps:
[( 517 - 807 ) ÷ 807] x 100 = -35.94%
Formula
Percentage change = [(517 - 807) / 807] x 100
Subtract the new number by the original number
517 - 807 = -290
-290 ÷ 807 = -0.3593556381660471
-0.3593556381660471 x 100 = -35.94%