84.29% is the change from 210 to 387
Calculation steps:
[( 387 - 210 ) ÷ 210] x 100 = 84.29%
Formula
Percentage change = [(387 - 210) / 210] x 100
Subtract the new number by the original number
387 - 210 = 177
177 ÷ 210 = 0.8428571428571429
0.8428571428571429 x 100 = 84.29%