-60.08% is the change from 997 to 398
Calculation steps:
[( 398 - 997 ) ÷ 997] x 100 = -60.08%
Formula
Percentage change = [(398 - 997) / 997] x 100
Subtract the new number by the original number
398 - 997 = -599
-599 ÷ 997 = -0.600802407221665
-0.600802407221665 x 100 = -60.08%