-48.55% is the change from 997 to 513
Calculation steps:
[( 513 - 997 ) ÷ 997] x 100 = -48.55%
Formula
Percentage change = [(513 - 997) / 997] x 100
Subtract the new number by the original number
513 - 997 = -484
-484 ÷ 997 = -0.485456369107322
-0.485456369107322 x 100 = -48.55%