-32.94% is the change from 771 to 517
Calculation steps:
[( 517 - 771 ) ÷ 771] x 100 = -32.94%
Formula
Percentage change = [(517 - 771) / 771] x 100
Subtract the new number by the original number
517 - 771 = -254
-254 ÷ 771 = -0.32944228274967574
-0.32944228274967574 x 100 = -32.94%