238.78% is the change from 49 to 166
Calculation steps:
[( 166 - 49 ) ÷ 49] x 100 = 238.78%
Formula
Percentage change = [(166 - 49) / 49] x 100
Subtract the new number by the original number
166 - 49 = 117
117 ÷ 49 = 2.3877551020408165
2.3877551020408165 x 100 = 238.78%