-54.22% is the change from 664 to 304
Calculation steps:
[( 304 - 664 ) ÷ 664] x 100 = -54.22%
Formula
Percentage change = [(304 - 664) / 664] x 100
Subtract the new number by the original number
304 - 664 = -360
-360 ÷ 664 = -0.5421686746987951
-0.5421686746987951 x 100 = -54.22%