-56.18% is the change from 906 to 397
Calculation steps:
[( 397 - 906 ) ÷ 906] x 100 = -56.18%
Formula
Percentage change = [(397 - 906) / 906] x 100
Subtract the new number by the original number
397 - 906 = -509
-509 ÷ 906 = -0.5618101545253863
-0.5618101545253863 x 100 = -56.18%