-69.8% is the change from 490 to 148
Calculation steps:
[( 148 - 490 ) ÷ 490] x 100 = -69.8%
Formula
Percentage change = [(148 - 490) / 490] x 100
Subtract the new number by the original number
148 - 490 = -342
-342 ÷ 490 = -0.6979591836734694
-0.6979591836734694 x 100 = -69.8%