311.54% is the change from 156 to 642
Calculation steps:
[( 642 - 156 ) ÷ 156] x 100 = 311.54%
Formula
Percentage change = [(642 - 156) / 156] x 100
Subtract the new number by the original number
642 - 156 = 486
486 ÷ 156 = 3.1153846153846154
3.1153846153846154 x 100 = 311.54%