-15.1% is the change from 404 to 343
Calculation steps:
[( 343 - 404 ) ÷ 404] x 100 = -15.1%
Formula
Percentage change = [(343 - 404) / 404] x 100
Subtract the new number by the original number
343 - 404 = -61
-61 ÷ 404 = -0.15099009900990099
-0.15099009900990099 x 100 = -15.1%