-46.12% is the change from 631 to 340
Calculation steps:
[( 340 - 631 ) ÷ 631] x 100 = -46.12%
Formula
Percentage change = [(340 - 631) / 631] x 100
Subtract the new number by the original number
340 - 631 = -291
-291 ÷ 631 = -0.4611727416798732
-0.4611727416798732 x 100 = -46.12%