Hi can you help me to do the question? can you give me a references for that information because I'm not to understand with this question

According to the Department of Statistics Malaysia (DOSM) in 2020, the production to five economics sectors namely services, manufacturing, agriculture, mining, and quarrying; and construction registered a contraction with a highly challenging domestic operating environment and lower global demand in response to Covid-19 Pandemic as shown in FIGURE 1. Therefore, it is putting into pressure especially to the Small-Medium Enterprises (SME) in Malaysia for making pricing decision on its products or services in relations to a firm's total revenue. Evaluate THREE (3) effects on a firm's total revenue in response between percentage change in quantity demanded for a goods or services with respect to the percentage change in price based on specific economics sectors. PRODUCTION SERVICES MANUFACTURING AGRICULTURE QUARRYING CONSTRUCTION -5.5% -2.6% 6.2% 3.8% 1 -2.2% 10.6% -19.4% 2.0% -0.6% 0.4% FIGURE 1: ECONOMICS SECTORS PRODUCTION IN MALAYSIA [60 marks]