287.5% is the change from 88 to 341
Calculation steps:
[( 341 - 88 ) ÷ 88] x 100 = 287.5%
Formula
Percentage change = [(341 - 88) / 88] x 100
Subtract the new number by the original number
341 - 88 = 253
253 ÷ 88 = 2.875
2.875 x 100 = 287.5%
Example