242.86% is the change from 84 to 288
Calculation steps:
[( 288 - 84 ) ÷ 84] x 100 = 242.86%
Formula
Percentage change = [(288 - 84) / 84] x 100
Subtract the new number by the original number
288 - 84 = 204
204 ÷ 84 = 2.4285714285714284
2.4285714285714284 x 100 = 242.86%