-70.15% is the change from 938 to 280
Calculation steps:
[( 280 - 938 ) ÷ 938] x 100 = -70.15%
Formula
Percentage change = [(280 - 938) / 938] x 100
Subtract the new number by the original number
280 - 938 = -658
-658 ÷ 938 = -0.7014925373134329
-0.7014925373134329 x 100 = -70.15%