145.24% is the change from 210 to 515
Calculation steps:
[( 515 - 210 ) ÷ 210] x 100 = 145.24%
Formula
Percentage change = [(515 - 210) / 210] x 100
Subtract the new number by the original number
515 - 210 = 305
305 ÷ 210 = 1.4523809523809523
1.4523809523809523 x 100 = 145.24%