268.67% is the change from 166 to 612
Calculation steps:
[( 612 - 166 ) ÷ 166] x 100 = 268.67%
Formula
Percentage change = [(612 - 166) / 166] x 100
Subtract the new number by the original number
612 - 166 = 446
446 ÷ 166 = 2.6867469879518073
2.6867469879518073 x 100 = 268.67%