150% is the change from 258 to 645
Calculation steps:
[( 645 - 258 ) ÷ 258] x 100 = 150%
Formula
Percentage change = [(645 - 258) / 258] x 100
Subtract the new number by the original number
645 - 258 = 387
387 ÷ 258 = 1.5
1.5 x 100 = 150%
Example