343.26% is the change from 215 to 953
Calculation steps:
[( 953 - 215 ) ÷ 215] x 100 = 343.26%
Formula
Percentage change = [(953 - 215) / 215] x 100
Subtract the new number by the original number
953 - 215 = 738
738 ÷ 215 = 3.432558139534884
3.432558139534884 x 100 = 343.26%