210.1% is the change from 297 to 921
Calculation steps:
[( 921 - 297 ) ÷ 297] x 100 = 210.1%
Formula
Percentage change = [(921 - 297) / 297] x 100
Subtract the new number by the original number
921 - 297 = 624
624 ÷ 297 = 2.101010101010101
2.101010101010101 x 100 = 210.1%