42.59% is the change from 216 to 308
Calculation steps:
[( 308 - 216 ) ÷ 216] x 100 = 42.59%
Formula
Percentage change = [(308 - 216) / 216] x 100
Subtract the new number by the original number
308 - 216 = 92
92 ÷ 216 = 0.42592592592592593
0.42592592592592593 x 100 = 42.59%