664.06% is the change from 128 to 978
Calculation steps:
[( 978 - 128 ) ÷ 128] x 100 = 664.06%
Formula
Percentage change = [(978 - 128) / 128] x 100
Subtract the new number by the original number
978 - 128 = 850
850 ÷ 128 = 6.640625
6.640625 x 100 = 664.06%