-63.9% is the change from 712 to 257
Calculation steps:
[( 257 - 712 ) ÷ 712] x 100 = -63.9%
Formula
Percentage change = [(257 - 712) / 712] x 100
Subtract the new number by the original number
257 - 712 = -455
-455 ÷ 712 = -0.6390449438202247
-0.6390449438202247 x 100 = -63.9%