89.63% is the change from 164 to 311
Calculation steps:
[( 311 - 164 ) ÷ 164] x 100 = 89.63%
Formula
Percentage change = [(311 - 164) / 164] x 100
Subtract the new number by the original number
311 - 164 = 147
147 ÷ 164 = 0.8963414634146342
0.8963414634146342 x 100 = 89.63%