-48.14% is the change from 997 to 517
Calculation steps:
[( 517 - 997 ) ÷ 997] x 100 = -48.14%
Formula
Percentage change = [(517 - 997) / 997] x 100
Subtract the new number by the original number
517 - 997 = -480
-480 ÷ 997 = -0.48144433299899697
-0.48144433299899697 x 100 = -48.14%