174.58% is the change from 299 to 821
Calculation steps:
[( 821 - 299 ) ÷ 299] x 100 = 174.58%
Formula
Percentage change = [(821 - 299) / 299] x 100
Subtract the new number by the original number
821 - 299 = 522
522 ÷ 299 = 1.745819397993311
1.745819397993311 x 100 = 174.58%