270.97% is the change from 217 to 805
Calculation steps:
[( 805 - 217 ) ÷ 217] x 100 = 270.97%
Formula
Percentage change = [(805 - 217) / 217] x 100
Subtract the new number by the original number
805 - 217 = 588
588 ÷ 217 = 2.7096774193548385
2.7096774193548385 x 100 = 270.97%