83.64% is the change from 544 to 999
Calculation steps:
[( 999 - 544 ) ÷ 544] x 100 = 83.64%
Formula
Percentage change = [(999 - 544) / 544] x 100
Subtract the new number by the original number
999 - 544 = 455
455 ÷ 544 = 0.8363970588235294
0.8363970588235294 x 100 = 83.64%