-77.68% is the change from 663 to 148
Calculation steps:
[( 148 - 663 ) ÷ 663] x 100 = -77.68%
Formula
Percentage change = [(148 - 663) / 663] x 100
Subtract the new number by the original number
148 - 663 = -515
-515 ÷ 663 = -0.7767722473604827
-0.7767722473604827 x 100 = -77.68%