-87.44% is the change from 780 to 98
Calculation steps:
[( 98 - 780 ) ÷ 780] x 100 = -87.44%
Formula
Percentage change = [(98 - 780) / 780] x 100
Subtract the new number by the original number
98 - 780 = -682
-682 ÷ 780 = -0.8743589743589744
-0.8743589743589744 x 100 = -87.44%