81.1% is the change from 164 to 297
Calculation steps:
[( 297 - 164 ) ÷ 164] x 100 = 81.1%
Formula
Percentage change = [(297 - 164) / 164] x 100
Subtract the new number by the original number
297 - 164 = 133
133 ÷ 164 = 0.8109756097560976
0.8109756097560976 x 100 = 81.1%