86.59% is the change from 164 to 306
Calculation steps:
[( 306 - 164 ) ÷ 164] x 100 = 86.59%
Formula
Percentage change = [(306 - 164) / 164] x 100
Subtract the new number by the original number
306 - 164 = 142
142 ÷ 164 = 0.8658536585365854
0.8658536585365854 x 100 = 86.59%