-48.69% is the change from 994 to 510
Calculation steps:
[( 510 - 994 ) ÷ 994] x 100 = -48.69%
Formula
Percentage change = [(510 - 994) / 994] x 100
Subtract the new number by the original number
510 - 994 = -484
-484 ÷ 994 = -0.4869215291750503
-0.4869215291750503 x 100 = -48.69%