84.76% is the change from 210 to 388
Calculation steps:
[( 388 - 210 ) ÷ 210] x 100 = 84.76%
Formula
Percentage change = [(388 - 210) / 210] x 100
Subtract the new number by the original number
388 - 210 = 178
178 ÷ 210 = 0.8476190476190476
0.8476190476190476 x 100 = 84.76%