52.05% is the change from 657 to 999
Calculation steps:
[( 999 - 657 ) ÷ 657] x 100 = 52.05%
Formula
Percentage change = [(999 - 657) / 657] x 100
Subtract the new number by the original number
999 - 657 = 342
342 ÷ 657 = 0.5205479452054794
0.5205479452054794 x 100 = 52.05%