-93.43% is the change from 609 to 40
Calculation steps:
[( 40 - 609 ) ÷ 609] x 100 = -93.43%
Formula
Percentage change = [(40 - 609) / 609] x 100
Subtract the new number by the original number
40 - 609 = -569
-569 ÷ 609 = -0.9343185550082101
-0.9343185550082101 x 100 = -93.43%