233.77% is the change from 77 to 257
Calculation steps:
[( 257 - 77 ) ÷ 77] x 100 = 233.77%
Formula
Percentage change = [(257 - 77) / 77] x 100
Subtract the new number by the original number
257 - 77 = 180
180 ÷ 77 = 2.3376623376623376
2.3376623376623376 x 100 = 233.77%