-38.29% is the change from 504 to 311
Calculation steps:
[( 311 - 504 ) ÷ 504] x 100 = -38.29%
Formula
Percentage change = [(311 - 504) / 504] x 100
Subtract the new number by the original number
311 - 504 = -193
-193 ÷ 504 = -0.38293650793650796
-0.38293650793650796 x 100 = -38.29%