-78.58% is the change from 677 to 145
Calculation steps:
[( 145 - 677 ) ÷ 677] x 100 = -78.58%
Formula
Percentage change = [(145 - 677) / 677] x 100
Subtract the new number by the original number
145 - 677 = -532
-532 ÷ 677 = -0.7858197932053176
-0.7858197932053176 x 100 = -78.58%