-68.6% is the change from 121 to 38
Calculation steps:
[( 38 - 121 ) ÷ 121] x 100 = -68.6%
Formula
Percentage change = [(38 - 121) / 121] x 100
Subtract the new number by the original number
38 - 121 = -83
-83 ÷ 121 = -0.6859504132231405
-0.6859504132231405 x 100 = -68.6%