-41.8% is the change from 909 to 529
Calculation steps:
[( 529 - 909 ) ÷ 909] x 100 = -41.8%
Formula
Percentage change = [(529 - 909) / 909] x 100
Subtract the new number by the original number
529 - 909 = -380
-380 ÷ 909 = -0.41804180418041803
-0.41804180418041803 x 100 = -41.8%