145.51% is the change from 312 to 766
Calculation steps:
[( 766 - 312 ) ÷ 312] x 100 = 145.51%
Formula
Percentage change = [(766 - 312) / 312] x 100
Subtract the new number by the original number
766 - 312 = 454
454 ÷ 312 = 1.455128205128205
1.455128205128205 x 100 = 145.51%