2700% is the change from 7 to 196
Calculation steps:
[( 196 - 7 ) ÷ 7] x 100 = 2700%
Formula
Percentage change = [(196 - 7) / 7] x 100
Subtract the new number by the original number
196 - 7 = 189
189 ÷ 7 = 27
27 x 100 = 2700%
Example