-71.66% is the change from 907 to 257
Calculation steps:
[( 257 - 907 ) ÷ 907] x 100 = -71.66%
Formula
Percentage change = [(257 - 907) / 907] x 100
Subtract the new number by the original number
257 - 907 = -650
-650 ÷ 907 = -0.7166482910694597
-0.7166482910694597 x 100 = -71.66%