-17.89% is the change from 341 to 280
Calculation steps:
[( 280 - 341 ) ÷ 341] x 100 = -17.89%
Formula
Percentage change = [(280 - 341) / 341] x 100
Subtract the new number by the original number
280 - 341 = -61
-61 ÷ 341 = -0.17888563049853373
-0.17888563049853373 x 100 = -17.89%