106.9% is the change from 203 to 420
Calculation steps:
[( 420 - 203 ) ÷ 203] x 100 = 106.9%
Formula
Percentage change = [(420 - 203) / 203] x 100
Subtract the new number by the original number
420 - 203 = 217
217 ÷ 203 = 1.0689655172413792
1.0689655172413792 x 100 = 106.9%