-49.63% is the change from 677 to 341
Calculation steps:
[( 341 - 677 ) ÷ 677] x 100 = -49.63%
Formula
Percentage change = [(341 - 677) / 677] x 100
Subtract the new number by the original number
341 - 677 = -336
-336 ÷ 677 = -0.4963072378138848
-0.4963072378138848 x 100 = -49.63%