-61.75% is the change from 664 to 254
Calculation steps:
[( 254 - 664 ) ÷ 664] x 100 = -61.75%
Formula
Percentage change = [(254 - 664) / 664] x 100
Subtract the new number by the original number
254 - 664 = -410
-410 ÷ 664 = -0.6174698795180723
-0.6174698795180723 x 100 = -61.75%