284.44% is the change from 45 to 173
Calculation steps:
[( 173 - 45 ) ÷ 45] x 100 = 284.44%
Formula
Percentage change = [(173 - 45) / 45] x 100
Subtract the new number by the original number
173 - 45 = 128
128 ÷ 45 = 2.8444444444444446
2.8444444444444446 x 100 = 284.44%