140.09% is the change from 212 to 509
Calculation steps:
[( 509 - 212 ) ÷ 212] x 100 = 140.09%
Formula
Percentage change = [(509 - 212) / 212] x 100
Subtract the new number by the original number
509 - 212 = 297
297 ÷ 212 = 1.400943396226415
1.400943396226415 x 100 = 140.09%