69.57% is the change from 207 to 351
Calculation steps:
[( 351 - 207 ) ÷ 207] x 100 = 69.57%
Formula
Percentage change = [(351 - 207) / 207] x 100
Subtract the new number by the original number
351 - 207 = 144
144 ÷ 207 = 0.6956521739130435
0.6956521739130435 x 100 = 69.57%