-50.86% is the change from 698 to 343
Calculation steps:
[( 343 - 698 ) ÷ 698] x 100 = -50.86%
Formula
Percentage change = [(343 - 698) / 698] x 100
Subtract the new number by the original number
343 - 698 = -355
-355 ÷ 698 = -0.5085959885386819
-0.5085959885386819 x 100 = -50.86%