-62.72% is the change from 346 to 129
Calculation steps:
[( 129 - 346 ) ÷ 346] x 100 = -62.72%
Formula
Percentage change = [(129 - 346) / 346] x 100
Subtract the new number by the original number
129 - 346 = -217
-217 ÷ 346 = -0.6271676300578035
-0.6271676300578035 x 100 = -62.72%