-63.93% is the change from 341 to 123
Calculation steps:
[( 123 - 341 ) ÷ 341] x 100 = -63.93%
Formula
Percentage change = [(123 - 341) / 341] x 100
Subtract the new number by the original number
123 - 341 = -218
-218 ÷ 341 = -0.6392961876832844
-0.6392961876832844 x 100 = -63.93%