-78.16% is the change from 554 to 121
Calculation steps:
[( 121 - 554 ) ÷ 554] x 100 = -78.16%
Formula
Percentage change = [(121 - 554) / 554] x 100
Subtract the new number by the original number
121 - 554 = -433
-433 ÷ 554 = -0.7815884476534296
-0.7815884476534296 x 100 = -78.16%