-68.22% is the change from 494 to 157
Calculation steps:
[( 157 - 494 ) ÷ 494] x 100 = -68.22%
Formula
Percentage change = [(157 - 494) / 494] x 100
Subtract the new number by the original number
157 - 494 = -337
-337 ÷ 494 = -0.6821862348178138
-0.6821862348178138 x 100 = -68.22%