-69.67% is the change from 488 to 148
Calculation steps:
[( 148 - 488 ) ÷ 488] x 100 = -69.67%
Formula
Percentage change = [(148 - 488) / 488] x 100
Subtract the new number by the original number
148 - 488 = -340
-340 ÷ 488 = -0.6967213114754098
-0.6967213114754098 x 100 = -69.67%