187.11% is the change from 225 to 646
Calculation steps:
[( 646 - 225 ) ÷ 225] x 100 = 187.11%
Formula
Percentage change = [(646 - 225) / 225] x 100
Subtract the new number by the original number
646 - 225 = 421
421 ÷ 225 = 1.8711111111111112
1.8711111111111112 x 100 = 187.11%