61.85% is the change from 173 to 280
Calculation steps:
[( 280 - 173 ) ÷ 173] x 100 = 61.85%
Formula
Percentage change = [(280 - 173) / 173] x 100
Subtract the new number by the original number
280 - 173 = 107
107 ÷ 173 = 0.6184971098265896
0.6184971098265896 x 100 = 61.85%