-73.97% is the change from 680 to 177
Calculation steps:
[( 177 - 680 ) ÷ 680] x 100 = -73.97%
Formula
Percentage change = [(177 - 680) / 680] x 100
Subtract the new number by the original number
177 - 680 = -503
-503 ÷ 680 = -0.7397058823529412
-0.7397058823529412 x 100 = -73.97%