-52.57% is the change from 641 to 304
Calculation steps:
[( 304 - 641 ) ÷ 641] x 100 = -52.57%
Formula
Percentage change = [(304 - 641) / 641] x 100
Subtract the new number by the original number
304 - 641 = -337
-337 ÷ 641 = -0.5257410296411856
-0.5257410296411856 x 100 = -52.57%