100.4% is the change from 252 to 505
Calculation steps:
[( 505 - 252 ) ÷ 252] x 100 = 100.4%
Formula
Percentage change = [(505 - 252) / 252] x 100
Subtract the new number by the original number
505 - 252 = 253
253 ÷ 252 = 1.003968253968254
1.003968253968254 x 100 = 100.4%