-62.87% is the change from 509 to 189
Calculation steps:
[( 189 - 509 ) ÷ 509] x 100 = -62.87%
Formula
Percentage change = [(189 - 509) / 509] x 100
Subtract the new number by the original number
189 - 509 = -320
-320 ÷ 509 = -0.6286836935166994
-0.6286836935166994 x 100 = -62.87%