-0.42% is the change from 237 to 236
Calculation steps:
[( 236 - 237 ) ÷ 237] x 100 = -0.42%
Formula
Percentage change = [(236 - 237) / 237] x 100
Subtract the new number by the original number
236 - 237 = -1
-1 ÷ 237 = -0.004219409282700422
-0.004219409282700422 x 100 = -0.42%