76.22% is the change from 349 to 615
Calculation steps:
[( 615 - 349 ) ÷ 349] x 100 = 76.22%
Formula
Percentage change = [(615 - 349) / 349] x 100
Subtract the new number by the original number
615 - 349 = 266
266 ÷ 349 = 0.7621776504297995
0.7621776504297995 x 100 = 76.22%