-59.4% is the change from 633 to 257
Calculation steps:
[( 257 - 633 ) ÷ 633] x 100 = -59.4%
Formula
Percentage change = [(257 - 633) / 633] x 100
Subtract the new number by the original number
257 - 633 = -376
-376 ÷ 633 = -0.593996840442338
-0.593996840442338 x 100 = -59.4%