-71.79% is the change from 677 to 191
Calculation steps:
[( 191 - 677 ) ÷ 677] x 100 = -71.79%
Formula
Percentage change = [(191 - 677) / 677] x 100
Subtract the new number by the original number
191 - 677 = -486
-486 ÷ 677 = -0.7178729689807977
-0.7178729689807977 x 100 = -71.79%