278.14% is the change from 215 to 813
Calculation steps:
[( 813 - 215 ) ÷ 215] x 100 = 278.14%
Formula
Percentage change = [(813 - 215) / 215] x 100
Subtract the new number by the original number
813 - 215 = 598
598 ÷ 215 = 2.781395348837209
2.781395348837209 x 100 = 278.14%