20.48% is the change from 166 to 200
Calculation steps:
[( 200 - 166 ) ÷ 166] x 100 = 20.48%
Formula
Percentage change = [(200 - 166) / 166] x 100
Subtract the new number by the original number
200 - 166 = 34
34 ÷ 166 = 0.20481927710843373
0.20481927710843373 x 100 = 20.48%