-63.46% is the change from 780 to 285
Calculation steps:
[( 285 - 780 ) ÷ 780] x 100 = -63.46%
Formula
Percentage change = [(285 - 780) / 780] x 100
Subtract the new number by the original number
285 - 780 = -495
-495 ÷ 780 = -0.6346153846153846
-0.6346153846153846 x 100 = -63.46%