64.63% is the change from 164 to 270
Calculation steps:
[( 270 - 164 ) ÷ 164] x 100 = 64.63%
Formula
Percentage change = [(270 - 164) / 164] x 100
Subtract the new number by the original number
270 - 164 = 106
106 ÷ 164 = 0.6463414634146342
0.6463414634146342 x 100 = 64.63%