-62.13% is the change from 668 to 253
Calculation steps:
[( 253 - 668 ) ÷ 668] x 100 = -62.13%
Formula
Percentage change = [(253 - 668) / 668] x 100
Subtract the new number by the original number
253 - 668 = -415
-415 ÷ 668 = -0.6212574850299402
-0.6212574850299402 x 100 = -62.13%