31.34% is the change from 67 to 88
Calculation steps:
[( 88 - 67 ) ÷ 67] x 100 = 31.34%
Formula
Percentage change = [(88 - 67) / 67] x 100
Subtract the new number by the original number
88 - 67 = 21
21 ÷ 67 = 0.31343283582089554
0.31343283582089554 x 100 = 31.34%