-19.31% is the change from 492 to 397
Calculation steps:
[( 397 - 492 ) ÷ 492] x 100 = -19.31%
Formula
Percentage change = [(397 - 492) / 492] x 100
Subtract the new number by the original number
397 - 492 = -95
-95 ÷ 492 = -0.19308943089430894
-0.19308943089430894 x 100 = -19.31%