998.88% is the change from 89 to 978
Calculation steps:
[( 978 - 89 ) ÷ 89] x 100 = 998.88%
Formula
Percentage change = [(978 - 89) / 89] x 100
Subtract the new number by the original number
978 - 89 = 889
889 ÷ 89 = 9.98876404494382
9.98876404494382 x 100 = 998.88%