155.21% is the change from 259 to 661
Calculation steps:
[( 661 - 259 ) ÷ 259] x 100 = 155.21%
Formula
Percentage change = [(661 - 259) / 259] x 100
Subtract the new number by the original number
661 - 259 = 402
402 ÷ 259 = 1.5521235521235521
1.5521235521235521 x 100 = 155.21%