-54.16% is the change from 997 to 457
Calculation steps:
[( 457 - 997 ) ÷ 997] x 100 = -54.16%
Formula
Percentage change = [(457 - 997) / 997] x 100
Subtract the new number by the original number
457 - 997 = -540
-540 ÷ 997 = -0.5416248746238717
-0.5416248746238717 x 100 = -54.16%