-18.77% is the change from 341 to 277
Calculation steps:
[( 277 - 341 ) ÷ 341] x 100 = -18.77%
Formula
Percentage change = [(277 - 341) / 341] x 100
Subtract the new number by the original number
277 - 341 = -64
-64 ÷ 341 = -0.187683284457478
-0.187683284457478 x 100 = -18.77%