51.9% is the change from 158 to 240
Calculation steps:
[( 240 - 158 ) ÷ 158] x 100 = 51.9%
Formula
Percentage change = [(240 - 158) / 158] x 100
Subtract the new number by the original number
240 - 158 = 82
82 ÷ 158 = 0.5189873417721519
0.5189873417721519 x 100 = 51.9%