-52.16% is the change from 997 to 477
Calculation steps:
[( 477 - 997 ) ÷ 997] x 100 = -52.16%
Formula
Percentage change = [(477 - 997) / 997] x 100
Subtract the new number by the original number
477 - 997 = -520
-520 ÷ 997 = -0.5215646940822467
-0.5215646940822467 x 100 = -52.16%