-62.64% is the change from 645 to 241
Calculation steps:
[( 241 - 645 ) ÷ 645] x 100 = -62.64%
Formula
Percentage change = [(241 - 645) / 645] x 100
Subtract the new number by the original number
241 - 645 = -404
-404 ÷ 645 = -0.6263565891472869
-0.6263565891472869 x 100 = -62.64%