87.8% is the change from 164 to 308
Calculation steps:
[( 308 - 164 ) ÷ 164] x 100 = 87.8%
Formula
Percentage change = [(308 - 164) / 164] x 100
Subtract the new number by the original number
308 - 164 = 144
144 ÷ 164 = 0.8780487804878049
0.8780487804878049 x 100 = 87.8%