-65.98% is the change from 488 to 166
Calculation steps:
[( 166 - 488 ) ÷ 488] x 100 = -65.98%
Formula
Percentage change = [(166 - 488) / 488] x 100
Subtract the new number by the original number
166 - 488 = -322
-322 ÷ 488 = -0.6598360655737705
-0.6598360655737705 x 100 = -65.98%