91.9% is the change from 284 to 545
Calculation steps:
[( 545 - 284 ) ÷ 284] x 100 = 91.9%
Formula
Percentage change = [(545 - 284) / 284] x 100
Subtract the new number by the original number
545 - 284 = 261
261 ÷ 284 = 0.9190140845070423
0.9190140845070423 x 100 = 91.9%