-36.87% is the change from 838 to 529
Calculation steps:
[( 529 - 838 ) ÷ 838] x 100 = -36.87%
Formula
Percentage change = [(529 - 838) / 838] x 100
Subtract the new number by the original number
529 - 838 = -309
-309 ÷ 838 = -0.36873508353221957
-0.36873508353221957 x 100 = -36.87%