975% is the change from 80 to 860
Calculation steps:
[( 860 - 80 ) ÷ 80] x 100 = 975%
Formula
Percentage change = [(860 - 80) / 80] x 100
Subtract the new number by the original number
860 - 80 = 780
780 ÷ 80 = 9.75
9.75 x 100 = 975%
Example