270.17% is the change from 181 to 670
Calculation steps:
[( 670 - 181 ) ÷ 181] x 100 = 270.17%
Formula
Percentage change = [(670 - 181) / 181] x 100
Subtract the new number by the original number
670 - 181 = 489
489 ÷ 181 = 2.701657458563536
2.701657458563536 x 100 = 270.17%