225% is the change from 84 to 273
Calculation steps:
[( 273 - 84 ) ÷ 84] x 100 = 225%
Formula
Percentage change = [(273 - 84) / 84] x 100
Subtract the new number by the original number
273 - 84 = 189
189 ÷ 84 = 2.25
2.25 x 100 = 225%
Example