-70.21% is the change from 940 to 280
Calculation steps:
[( 280 - 940 ) ÷ 940] x 100 = -70.21%
Formula
Percentage change = [(280 - 940) / 940] x 100
Subtract the new number by the original number
280 - 940 = -660
-660 ÷ 940 = -0.7021276595744681
-0.7021276595744681 x 100 = -70.21%