21.89% is the change from 233 to 284
Calculation steps:
[( 284 - 233 ) ÷ 233] x 100 = 21.89%
Formula
Percentage change = [(284 - 233) / 233] x 100
Subtract the new number by the original number
284 - 233 = 51
51 ÷ 233 = 0.21888412017167383
0.21888412017167383 x 100 = 21.89%