81.43% is the change from 210 to 381
Calculation steps:
[( 381 - 210 ) ÷ 210] x 100 = 81.43%
Formula
Percentage change = [(381 - 210) / 210] x 100
Subtract the new number by the original number
381 - 210 = 171
171 ÷ 210 = 0.8142857142857143
0.8142857142857143 x 100 = 81.43%