-18.72% is the change from 609 to 495
Calculation steps:
[( 495 - 609 ) ÷ 609] x 100 = -18.72%
Formula
Percentage change = [(495 - 609) / 609] x 100
Subtract the new number by the original number
495 - 609 = -114
-114 ÷ 609 = -0.18719211822660098
-0.18719211822660098 x 100 = -18.72%