69.05% is the change from 210 to 355
Calculation steps:
[( 355 - 210 ) ÷ 210] x 100 = 69.05%
Formula
Percentage change = [(355 - 210) / 210] x 100
Subtract the new number by the original number
355 - 210 = 145
145 ÷ 210 = 0.6904761904761905
0.6904761904761905 x 100 = 69.05%