26.51% is the change from 166 to 210
Calculation steps:
[( 210 - 166 ) ÷ 166] x 100 = 26.51%
Formula
Percentage change = [(210 - 166) / 166] x 100
Subtract the new number by the original number
210 - 166 = 44
44 ÷ 166 = 0.26506024096385544
0.26506024096385544 x 100 = 26.51%