-64.24% is the change from 783 to 280
Calculation steps:
[( 280 - 783 ) ÷ 783] x 100 = -64.24%
Formula
Percentage change = [(280 - 783) / 783] x 100
Subtract the new number by the original number
280 - 783 = -503
-503 ÷ 783 = -0.6424010217113666
-0.6424010217113666 x 100 = -64.24%