-70.91% is the change from 928 to 270
Calculation steps:
[( 270 - 928 ) ÷ 928] x 100 = -70.91%
Formula
Percentage change = [(270 - 928) / 928] x 100
Subtract the new number by the original number
270 - 928 = -658
-658 ÷ 928 = -0.709051724137931
-0.709051724137931 x 100 = -70.91%