100% is the change from 470 to 940
Calculation steps:
[( 940 - 470 ) ÷ 470] x 100 = 100%
Formula
Percentage change = [(940 - 470) / 470] x 100
Subtract the new number by the original number
940 - 470 = 470
470 ÷ 470 = 1
1 x 100 = 100%
Example