-71.82% is the change from 912 to 257
Calculation steps:
[( 257 - 912 ) ÷ 912] x 100 = -71.82%
Formula
Percentage change = [(257 - 912) / 912] x 100
Subtract the new number by the original number
257 - 912 = -655
-655 ÷ 912 = -0.7182017543859649
-0.7182017543859649 x 100 = -71.82%