-57.34% is the change from 504 to 215
Calculation steps:
[( 215 - 504 ) ÷ 504] x 100 = -57.34%
Formula
Percentage change = [(215 - 504) / 504] x 100
Subtract the new number by the original number
215 - 504 = -289
-289 ÷ 504 = -0.5734126984126984
-0.5734126984126984 x 100 = -57.34%