247.44% is the change from 215 to 747
Calculation steps:
[( 747 - 215 ) ÷ 215] x 100 = 247.44%
Formula
Percentage change = [(747 - 215) / 215] x 100
Subtract the new number by the original number
747 - 215 = 532
532 ÷ 215 = 2.474418604651163
2.474418604651163 x 100 = 247.44%