974.73% is the change from 91 to 978
Calculation steps:
[( 978 - 91 ) ÷ 91] x 100 = 974.73%
Formula
Percentage change = [(978 - 91) / 91] x 100
Subtract the new number by the original number
978 - 91 = 887
887 ÷ 91 = 9.747252747252746
9.747252747252746 x 100 = 974.73%