-22.95% is the change from 671 to 517
Calculation steps:
[( 517 - 671 ) ÷ 671] x 100 = -22.95%
Formula
Percentage change = [(517 - 671) / 671] x 100
Subtract the new number by the original number
517 - 671 = -154
-154 ÷ 671 = -0.22950819672131148
-0.22950819672131148 x 100 = -22.95%