21.55% is the change from 543 to 660
Calculation steps:
[( 660 - 543 ) ÷ 543] x 100 = 21.55%
Formula
Percentage change = [(660 - 543) / 543] x 100
Subtract the new number by the original number
660 - 543 = 117
117 ÷ 543 = 0.2154696132596685
0.2154696132596685 x 100 = 21.55%