-56.47% is the change from 997 to 434
Calculation steps:
[( 434 - 997 ) ÷ 997] x 100 = -56.47%
Formula
Percentage change = [(434 - 997) / 997] x 100
Subtract the new number by the original number
434 - 997 = -563
-563 ÷ 997 = -0.5646940822467402
-0.5646940822467402 x 100 = -56.47%