121.2% is the change from 415 to 918
Calculation steps:
[( 918 - 415 ) ÷ 415] x 100 = 121.2%
Formula
Percentage change = [(918 - 415) / 415] x 100
Subtract the new number by the original number
918 - 415 = 503
503 ÷ 415 = 1.2120481927710844
1.2120481927710844 x 100 = 121.2%