-38.23% is the change from 837 to 517
Calculation steps:
[( 517 - 837 ) ÷ 837] x 100 = -38.23%
Formula
Percentage change = [(517 - 837) / 837] x 100
Subtract the new number by the original number
517 - 837 = -320
-320 ÷ 837 = -0.3823178016726404
-0.3823178016726404 x 100 = -38.23%