253.92% is the change from 217 to 768
Calculation steps:
[( 768 - 217 ) ÷ 217] x 100 = 253.92%
Formula
Percentage change = [(768 - 217) / 217] x 100
Subtract the new number by the original number
768 - 217 = 551
551 ÷ 217 = 2.5391705069124426
2.5391705069124426 x 100 = 253.92%