15.78% is the change from 545 to 631
Calculation steps:
[( 631 - 545 ) ÷ 545] x 100 = 15.78%
Formula
Percentage change = [(631 - 545) / 545] x 100
Subtract the new number by the original number
631 - 545 = 86
86 ÷ 545 = 0.1577981651376147
0.1577981651376147 x 100 = 15.78%