-18.02% is the change from 516 to 423
Calculation steps:
[( 423 - 516 ) ÷ 516] x 100 = -18.02%
Formula
Percentage change = [(423 - 516) / 516] x 100
Subtract the new number by the original number
423 - 516 = -93
-93 ÷ 516 = -0.18023255813953487
-0.18023255813953487 x 100 = -18.02%