-39.01% is the change from 523 to 319
Calculation steps:
[( 319 - 523 ) ÷ 523] x 100 = -39.01%
Formula
Percentage change = [(319 - 523) / 523] x 100
Subtract the new number by the original number
319 - 523 = -204
-204 ÷ 523 = -0.390057361376673
-0.390057361376673 x 100 = -39.01%