323.88% is the change from 67 to 284
Calculation steps:
[( 284 - 67 ) ÷ 67] x 100 = 323.88%
Formula
Percentage change = [(284 - 67) / 67] x 100
Subtract the new number by the original number
284 - 67 = 217
217 ÷ 67 = 3.2388059701492535
3.2388059701492535 x 100 = 323.88%