281.93% is the change from 166 to 634
Calculation steps:
[( 634 - 166 ) ÷ 166] x 100 = 281.93%
Formula
Percentage change = [(634 - 166) / 166] x 100
Subtract the new number by the original number
634 - 166 = 468
468 ÷ 166 = 2.819277108433735
2.819277108433735 x 100 = 281.93%