49.11% is the change from 505 to 753
Calculation steps:
[( 753 - 505 ) ÷ 505] x 100 = 49.11%
Formula
Percentage change = [(753 - 505) / 505] x 100
Subtract the new number by the original number
753 - 505 = 248
248 ÷ 505 = 0.4910891089108911
0.4910891089108911 x 100 = 49.11%