-72.31% is the change from 928 to 257
Calculation steps:
[( 257 - 928 ) ÷ 928] x 100 = -72.31%
Formula
Percentage change = [(257 - 928) / 928] x 100
Subtract the new number by the original number
257 - 928 = -671
-671 ÷ 928 = -0.7230603448275862
-0.7230603448275862 x 100 = -72.31%