-36.27% is the change from 488 to 311
Calculation steps:
[( 311 - 488 ) ÷ 488] x 100 = -36.27%
Formula
Percentage change = [(311 - 488) / 488] x 100
Subtract the new number by the original number
311 - 488 = -177
-177 ÷ 488 = -0.36270491803278687
-0.36270491803278687 x 100 = -36.27%