-20.17% is the change from 347 to 277
Calculation steps:
[( 277 - 347 ) ÷ 347] x 100 = -20.17%
Formula
Percentage change = [(277 - 347) / 347] x 100
Subtract the new number by the original number
277 - 347 = -70
-70 ÷ 347 = -0.2017291066282421
-0.2017291066282421 x 100 = -20.17%