-39.32% is the change from 997 to 605
Calculation steps:
[( 605 - 997 ) ÷ 997] x 100 = -39.32%
Formula
Percentage change = [(605 - 997) / 997] x 100
Subtract the new number by the original number
605 - 997 = -392
-392 ÷ 997 = -0.39317953861584753
-0.39317953861584753 x 100 = -39.32%