900% is the change from 97 to 970
Calculation steps:
[( 970 - 97 ) ÷ 97] x 100 = 900%
Formula
Percentage change = [(970 - 97) / 97] x 100
Subtract the new number by the original number
970 - 97 = 873
873 ÷ 97 = 9
9 x 100 = 900%
Example