-77.04% is the change from 649 to 149
Calculation steps:
[( 149 - 649 ) ÷ 649] x 100 = -77.04%
Formula
Percentage change = [(149 - 649) / 649] x 100
Subtract the new number by the original number
149 - 649 = -500
-500 ÷ 649 = -0.7704160246533128
-0.7704160246533128 x 100 = -77.04%