Passage

Directions: Read the information given below and answer the question that follows. Out of 10 tech start-ups—Start-up 1 through Start-up 10—Start-up 9 currently has the highest total valuation, and Start-up 10 currently has the highest valuation per engineer. (Valuation per engineer = Total valuation ÷ Number of engineer.) The table below provides data for Start-ups 1–8 for the year 2024: - Column 1 specifies the start-up identity - Column 2 gives the start-up's valuation as a fraction of Start-up 9's valuation. - Column 3 gives the start-up's valuation per engineer as a fraction of Start-up 10's valuation per engineer. - Column 4 gives the start-up's annual valuation growth rate. - Column 5 gives the start-up's annual engineer headcount growth rate. Start-up Valuation Valuation per Engineer Annual Valuation Growth Rate Annual Engineer Headcount Growth Rate Start-up 1 0.50 0.6 5.00% 10.00% Start-up 2 0.45 0.45 8.00% 5.00% Start-up 3 0.40 0.2 12.00% 2.00% Start-up 4 0.35 0.55 4.00% 8.00% Start-up 5 0.30 0.5 10.00% 7.00% Start-up 6 0.25 0.3 6.00% 3.00% Start-up 7 0.20 0.4 15.00% 12.00% Start-up 8 0.15 0.65 3.00% 4.00% Assume that the valuation growth rates and engineer headcount growth rates will remain constant for the next three years.

By what percent did the engineer headcount of Start-up 7 increase in 2025 compared to 2023?