-43.56% is the change from 909 to 513
Calculation steps:
[( 513 - 909 ) ÷ 909] x 100 = -43.56%
Formula
Percentage change = [(513 - 909) / 909] x 100
Subtract the new number by the original number
513 - 909 = -396
-396 ÷ 909 = -0.43564356435643564
-0.43564356435643564 x 100 = -43.56%