-57.57% is the change from 997 to 423
Calculation steps:
[( 423 - 997 ) ÷ 997] x 100 = -57.57%
Formula
Percentage change = [(423 - 997) / 997] x 100
Subtract the new number by the original number
423 - 997 = -574
-574 ÷ 997 = -0.5757271815446339
-0.5757271815446339 x 100 = -57.57%