-77.99% is the change from 677 to 149
Calculation steps:
[( 149 - 677 ) ÷ 677] x 100 = -77.99%
Formula
Percentage change = [(149 - 677) / 677] x 100
Subtract the new number by the original number
149 - 677 = -528
-528 ÷ 677 = -0.7799113737075333
-0.7799113737075333 x 100 = -77.99%