-92.56% is the change from 121 to 9
Calculation steps:
[( 9 - 121 ) ÷ 121] x 100 = -92.56%
Formula
Percentage change = [(9 - 121) / 121] x 100
Subtract the new number by the original number
9 - 121 = -112
-112 ÷ 121 = -0.9256198347107438
-0.9256198347107438 x 100 = -92.56%