-30.42% is the change from 641 to 446
Calculation steps:
[( 446 - 641 ) ÷ 641] x 100 = -30.42%
Formula
Percentage change = [(446 - 641) / 641] x 100
Subtract the new number by the original number
446 - 641 = -195
-195 ÷ 641 = -0.3042121684867395
-0.3042121684867395 x 100 = -30.42%