494.23% is the change from 52 to 309
Calculation steps:
[( 309 - 52 ) ÷ 52] x 100 = 494.23%
Formula
Percentage change = [(309 - 52) / 52] x 100
Subtract the new number by the original number
309 - 52 = 257
257 ÷ 52 = 4.9423076923076925
4.9423076923076925 x 100 = 494.23%