242.17% is the change from 83 to 284
Calculation steps:
[( 284 - 83 ) ÷ 83] x 100 = 242.17%
Formula
Percentage change = [(284 - 83) / 83] x 100
Subtract the new number by the original number
284 - 83 = 201
201 ÷ 83 = 2.4216867469879517
2.4216867469879517 x 100 = 242.17%