4450% is the change from 2 to 91
Calculation steps:
[( 91 - 2 ) ÷ 2] x 100 = 4450%
Formula
Percentage change = [(91 - 2) / 2] x 100
Subtract the new number by the original number
91 - 2 = 89
89 ÷ 2 = 44.5
44.5 x 100 = 4450%
Example