211.63% is the change from 215 to 670
Calculation steps:
[( 670 - 215 ) ÷ 215] x 100 = 211.63%
Formula
Percentage change = [(670 - 215) / 215] x 100
Subtract the new number by the original number
670 - 215 = 455
455 ÷ 215 = 2.116279069767442
2.116279069767442 x 100 = 211.63%