31.09% is the change from 267 to 350
Calculation steps:
[( 350 - 267 ) ÷ 267] x 100 = 31.09%
Formula
Percentage change = [(350 - 267) / 267] x 100
Subtract the new number by the original number
350 - 267 = 83
83 ÷ 267 = 0.31086142322097376
0.31086142322097376 x 100 = 31.09%