147.12% is the change from 312 to 771
Calculation steps:
[( 771 - 312 ) ÷ 312] x 100 = 147.12%
Formula
Percentage change = [(771 - 312) / 312] x 100
Subtract the new number by the original number
771 - 312 = 459
459 ÷ 312 = 1.4711538461538463
1.4711538461538463 x 100 = 147.12%