-27.61% is the change from 641 to 464
Calculation steps:
[( 464 - 641 ) ÷ 641] x 100 = -27.61%
Formula
Percentage change = [(464 - 641) / 641] x 100
Subtract the new number by the original number
464 - 641 = -177
-177 ÷ 641 = -0.27613104524180965
-0.27613104524180965 x 100 = -27.61%