-77.53% is the change from 663 to 149
Calculation steps:
[( 149 - 663 ) ÷ 663] x 100 = -77.53%
Formula
Percentage change = [(149 - 663) / 663] x 100
Subtract the new number by the original number
149 - 663 = -514
-514 ÷ 663 = -0.77526395173454
-0.77526395173454 x 100 = -77.53%