-68.45% is the change from 504 to 159
Calculation steps:
[( 159 - 504 ) ÷ 504] x 100 = -68.45%
Formula
Percentage change = [(159 - 504) / 504] x 100
Subtract the new number by the original number
159 - 504 = -345
-345 ÷ 504 = -0.6845238095238095
-0.6845238095238095 x 100 = -68.45%