-63.7% is the change from 664 to 241
Calculation steps:
[( 241 - 664 ) ÷ 664] x 100 = -63.7%
Formula
Percentage change = [(241 - 664) / 664] x 100
Subtract the new number by the original number
241 - 664 = -423
-423 ÷ 664 = -0.6370481927710844
-0.6370481927710844 x 100 = -63.7%