-63.45% is the change from 766 to 280
Calculation steps:
[( 280 - 766 ) ÷ 766] x 100 = -63.45%
Formula
Percentage change = [(280 - 766) / 766] x 100
Subtract the new number by the original number
280 - 766 = -486
-486 ÷ 766 = -0.6344647519582245
-0.6344647519582245 x 100 = -63.45%