66.95% is the change from 348 to 581
Calculation steps:
[( 581 - 348 ) ÷ 348] x 100 = 66.95%
Formula
Percentage change = [(581 - 348) / 348] x 100
Subtract the new number by the original number
581 - 348 = 233
233 ÷ 348 = 0.6695402298850575
0.6695402298850575 x 100 = 66.95%