283.33% is the change from 216 to 828
Calculation steps:
[( 828 - 216 ) ÷ 216] x 100 = 283.33%
Formula
Percentage change = [(828 - 216) / 216] x 100
Subtract the new number by the original number
828 - 216 = 612
612 ÷ 216 = 2.8333333333333335
2.8333333333333335 x 100 = 283.33%