-46.27% is the change from 644 to 346
Calculation steps:
[( 346 - 644 ) ÷ 644] x 100 = -46.27%
Formula
Percentage change = [(346 - 644) / 644] x 100
Subtract the new number by the original number
346 - 644 = -298
-298 ÷ 644 = -0.46273291925465837
-0.46273291925465837 x 100 = -46.27%