-15.44% is the change from 609 to 515
Calculation steps:
[( 515 - 609 ) ÷ 609] x 100 = -15.44%
Formula
Percentage change = [(515 - 609) / 609] x 100
Subtract the new number by the original number
515 - 609 = -94
-94 ÷ 609 = -0.15435139573070608
-0.15435139573070608 x 100 = -15.44%