3020% is the change from 10 to 312
Calculation steps:
[( 312 - 10 ) ÷ 10] x 100 = 3020%
Formula
Percentage change = [(312 - 10) / 10] x 100
Subtract the new number by the original number
312 - 10 = 302
302 ÷ 10 = 30.2
30.2 x 100 = 3020%
Example