139.05% is the change from 210 to 502
Calculation steps:
[( 502 - 210 ) ÷ 210] x 100 = 139.05%
Formula
Percentage change = [(502 - 210) / 210] x 100
Subtract the new number by the original number
502 - 210 = 292
292 ÷ 210 = 1.3904761904761904
1.3904761904761904 x 100 = 139.05%