-9.15% is the change from 437 to 397
Calculation steps:
[( 397 - 437 ) ÷ 437] x 100 = -9.15%
Formula
Percentage change = [(397 - 437) / 437] x 100
Subtract the new number by the original number
397 - 437 = -40
-40 ÷ 437 = -0.09153318077803203
-0.09153318077803203 x 100 = -9.15%