273.49% is the change from 166 to 620
Calculation steps:
[( 620 - 166 ) ÷ 166] x 100 = 273.49%
Formula
Percentage change = [(620 - 166) / 166] x 100
Subtract the new number by the original number
620 - 166 = 454
454 ÷ 166 = 2.7349397590361444
2.7349397590361444 x 100 = 273.49%