1050% is the change from 18 to 207
Calculation steps:
[( 207 - 18 ) ÷ 18] x 100 = 1050%
Formula
Percentage change = [(207 - 18) / 18] x 100
Subtract the new number by the original number
207 - 18 = 189
189 ÷ 18 = 10.5
10.5 x 100 = 1050%
Example