316% is the change from 75 to 312
Calculation steps:
[( 312 - 75 ) ÷ 75] x 100 = 316%
Formula
Percentage change = [(312 - 75) / 75] x 100
Subtract the new number by the original number
312 - 75 = 237
237 ÷ 75 = 3.16
3.16 x 100 = 316%
Example