-62.65% is the change from 664 to 248
Calculation steps:
[( 248 - 664 ) ÷ 664] x 100 = -62.65%
Formula
Percentage change = [(248 - 664) / 664] x 100
Subtract the new number by the original number
248 - 664 = -416
-416 ÷ 664 = -0.6265060240963856
-0.6265060240963856 x 100 = -62.65%