-70.08% is the change from 488 to 146
Calculation steps:
[( 146 - 488 ) ÷ 488] x 100 = -70.08%
Formula
Percentage change = [(146 - 488) / 488] x 100
Subtract the new number by the original number
146 - 488 = -342
-342 ÷ 488 = -0.7008196721311475
-0.7008196721311475 x 100 = -70.08%