980% is the change from 80 to 864
Calculation steps:
[( 864 - 80 ) ÷ 80] x 100 = 980%
Formula
Percentage change = [(864 - 80) / 80] x 100
Subtract the new number by the original number
864 - 80 = 784
784 ÷ 80 = 9.8
9.8 x 100 = 980%
Example