1212.5% is the change from 32 to 420
Calculation steps:
[( 420 - 32 ) ÷ 32] x 100 = 1212.5%
Formula
Percentage change = [(420 - 32) / 32] x 100
Subtract the new number by the original number
420 - 32 = 388
388 ÷ 32 = 12.125
12.125 x 100 = 1212.5%
Example