177.55% is the change from 294 to 816
Calculation steps:
[( 816 - 294 ) ÷ 294] x 100 = 177.55%
Formula
Percentage change = [(816 - 294) / 294] x 100
Subtract the new number by the original number
816 - 294 = 522
522 ÷ 294 = 1.7755102040816326
1.7755102040816326 x 100 = 177.55%