-34.63% is the change from 488 to 319
Calculation steps:
[( 319 - 488 ) ÷ 488] x 100 = -34.63%
Formula
Percentage change = [(319 - 488) / 488] x 100
Subtract the new number by the original number
319 - 488 = -169
-169 ÷ 488 = -0.3463114754098361
-0.3463114754098361 x 100 = -34.63%