162.3% is the change from 252 to 661
Calculation steps:
[( 661 - 252 ) ÷ 252] x 100 = 162.3%
Formula
Percentage change = [(661 - 252) / 252] x 100
Subtract the new number by the original number
661 - 252 = 409
409 ÷ 252 = 1.623015873015873
1.623015873015873 x 100 = 162.3%