53.05% is the change from 164 to 251
Calculation steps:
[( 251 - 164 ) ÷ 164] x 100 = 53.05%
Formula
Percentage change = [(251 - 164) / 164] x 100
Subtract the new number by the original number
251 - 164 = 87
87 ÷ 164 = 0.5304878048780488
0.5304878048780488 x 100 = 53.05%