 
<translate> Yana samun 20 * 40 = $800 a mako. Ya kasance yana yin 16 * 25 = $ 400 a mako. Saboda haka ya kara 800 - 400 = $400 a mako. Saboda haka yana samun karin $20,800 a shekara. <eng> He makes 20 * 40 = $800 per week. He used to make 16 * 25 = $400 per week. So his raise was 800 - 400 = $400 per week. So he makes 400 * 52 = $20,800 per year more. 