-66.27% is the change from 504 to 170
Calculation steps:
[( 170 - 504 ) ÷ 504] x 100 = -66.27%
Formula
Percentage change = [(170 - 504) / 504] x 100
Subtract the new number by the original number
170 - 504 = -334
-334 ÷ 504 = -0.6626984126984127
-0.6626984126984127 x 100 = -66.27%