-22.65% is the change from 671 to 519
Calculation steps:
[( 519 - 671 ) ÷ 671] x 100 = -22.65%
Formula
Percentage change = [(519 - 671) / 671] x 100
Subtract the new number by the original number
519 - 671 = -152
-152 ÷ 671 = -0.22652757078986588
-0.22652757078986588 x 100 = -22.65%