-63.75% is the change from 709 to 257
Calculation steps:
[( 257 - 709 ) ÷ 709] x 100 = -63.75%
Formula
Percentage change = [(257 - 709) / 709] x 100
Subtract the new number by the original number
257 - 709 = -452
-452 ÷ 709 = -0.6375176304654443
-0.6375176304654443 x 100 = -63.75%