-46.65% is the change from 641 to 342
Calculation steps:
[( 342 - 641 ) ÷ 641] x 100 = -46.65%
Formula
Percentage change = [(342 - 641) / 641] x 100
Subtract the new number by the original number
342 - 641 = -299
-299 ÷ 641 = -0.4664586583463339
-0.4664586583463339 x 100 = -46.65%