230.23% is the change from 215 to 710
Calculation steps:
[( 710 - 215 ) ÷ 215] x 100 = 230.23%
Formula
Percentage change = [(710 - 215) / 215] x 100
Subtract the new number by the original number
710 - 215 = 495
495 ÷ 215 = 2.302325581395349
2.302325581395349 x 100 = 230.23%