-36.98% is the change from 503 to 317
Calculation steps:
[( 317 - 503 ) ÷ 503] x 100 = -36.98%
Formula
Percentage change = [(317 - 503) / 503] x 100
Subtract the new number by the original number
317 - 503 = -186
-186 ÷ 503 = -0.3697813121272366
-0.3697813121272366 x 100 = -36.98%