-99.49% is the change from 780 to 4
Calculation steps:
[( 4 - 780 ) ÷ 780] x 100 = -99.49%
Formula
Percentage change = [(4 - 780) / 780] x 100
Subtract the new number by the original number
4 - 780 = -776
-776 ÷ 780 = -0.9948717948717949
-0.9948717948717949 x 100 = -99.49%